What characteristics would you look for when choosing an outfit for a young child to wear

If the invitation says...

• Casual: You do not need to dress up. Sneakers, jeans and T-shirts are all acceptable, and even encouraged.
• Dressy casual: You should dress up, but only a little. It’s often just a matter of wearing nicer shoes, a snazzier top or pants that aren’t blue jeans (though denim is fine with the right kind of shirt -- more on that later).
• Business attire: You should dress as someone might for a client-facing job. Of course, there is plenty of variation within this category. It might mean a suit, a knee-length skirt, or a blazer and khaki bottoms. But it definitely means no jeans and no sneakers.
• Cocktail: You should dress much nicer than you do every day. Try separates in satin, silk or velvet. Suits. When in doubt, wear black.
• Black tie: You should wear a very elegant dress – say, a long gown or a cocktail dress that’s on the fancier side – or a tuxedo.
• White tie: You should look very fancy. Tailcoats, floor-length gowns and, potentially, white gloves are all on the table.

Now let’s get specific.

Dos

Jeans and a T-shirt: When the most casual of outfits is perfectly acceptable, you might as well go with it.

Khakis, modest shorts, day dresses and skirts

Anything cotton or linen: In the summertime especially, it’s more pleasant to wear breathable fabrics, and these can easily be dressed up or down.

Basically, you want to dress like any of the characters on your favorite sitcom routinely do: in comfortable clothing that is neither ostentatious nor schlubby.

Don'ts

Graphic T’s: Plain T-shirts are great, but ones with inflammatory words or images might be better left at home. The Emily Post Institute, whose mission is to educate people about etiquette, advises against shirts that bear slogans altogether.

Anything clearly ripped or stained: It’s a matter of self-respect more than anything, but it also shows respect for your host and fellow guests when you dress in clean clothes. Intentional distressing on denim is fine.

Uncomfortable clothing: This is always a don’t, but there’s no reason to dress outside your comfort zone when the dress code is casual. The idea is to come as you are.

Where Casual is Appropriate

• Friendly gatherings: BBQs, housewarming parties
• Informal dinner outings
• Traveling

Dos

Dress: A shirt dress or a sweater dress can appear refined and relaxed at once.

Blouse or button-down shirt: You can’t go wrong with a crisp, classic top. Add a blazer to dress the look up a notch or two.

Dark denim: Unfaded indigo or black jeans can make an outfit feel instantly more evening-appropriate.

“Going-out top”: These shirts – often constructed from synthetic materials and sometimes bought cheaply from fast-fashion stores – are meant to make a casual look a little more club-ready. Ultimately, a going-out top is anything that makes you feel good.

Jumpsuit: It’s a stylish one-piece alternative to the dress that can be scaled for elegance. Boiler suits in particular are very trendy this year.

Don'ts

Sneakers: unless they are very clean and not the type you would wear to the gym

Shorts: just don't.

Where Dressy Casual is Appropriate

• A first date
• Most nights out with friends (unless the dress code is explicit).

Dos

If business casual: khakis or dark dress pants; a button-down shirt; sport coat or blazer; tie optional.

If business formal: dark suit, dress shirt and dress shoes; silk tie; sheath dress; pencil skirt. Think Kerry Washington on “Scandal,” or any of the esteemed actors on USA Network’s “Suits.”

Don'ts

Sneakers, not even nice ones: They will make you stand out in a bad way.

Jeans: Business attire is not the same as tech company work attire.

Clothing that distracts. Our fashion critic Vanessa Friedman says that “clothes should not be the focus of attention,” which means “they should not be what colleagues or friends remember after a meeting.”

Anything that makes you wonder, “Is this a bad idea?” If you’re thinking it before you leave the house, your thoughts will only get louder throughout the day.

When Business Attire is Appropriate

• Most workplaces and related events
• Networking mixers
• Job interviews
• Conferences

Dos

Dress: You’ll want to wear a dress that is made of a refined fabric (like silk, lace or taffeta) and cuts around the knee. It should be much more formal than a sundress, but less formal than a ballgown. Most department stores and online retailers have sections devoted to party dresses, and any of those should do.

Suit: Most people wear dark suits to occasions with this dress code, but if the event is a daytime party, a light suit (beige, gray) is totally fine.

Dressy separates: If you wear a very snazzy top (think sequins or silk), you can probably get away with dress pants (say, velvet) or a skirt on the bottom. 

Jumpsuit: Everyone wears dresses. Why not do wear something that makes a statement?

Dress shoes, pumps

When in doubt, wear black.

Don'ts

Anything too short or tight (unless you love being physically uncomfortable for hours at an event).

Jeans: This is definitely not the time or place for America’s favorite pant.

Plain cotton anything.

When Cocktail/Semi Formal is Appropriate

• Some weddings
• Evening fundraisers
• Proms and other formal school events

Dos

Dress: Long gown or a very elegant cocktail dress: This can be elevated with jewelry and other accessories.

Tuxedo

Pumps or strappy sandals

Black wingtips or oxfords

Remember how the characters on “Gossip Girl” dressed for special occasions? That’s the bar here. 

Don'ts

It’s not a strict rule, but most people advise against bright colors for practical reasons: They’re harder to rewear and more difficult to clean.

Scuffed shoes: Even if they are dress shoes, you want them to be in tip-top condition.

When Black Tie is Appropriate

• Fancy weddings
• Galas

Dos

Floor-length gown

Tailcoat jacket

Jewels

Long white gloves: optional, and sort of extra, but isn’t that the point?

Looking like royalty is the ideal outcome.

Don'ts

An above-the-knee dress

Suit: Your business attire is dapper, but it’s not welcome here!

When White Tie is Appropriate

• A very, very fancy wedding, if explicitly stated on the invitation
• The Met Gala, or any fund-raiser of its caliber

How to Save Money

Dressing up, even once in a while, can easily become expensive. Anyone who is familiar with the marathon of weddings that begins in one’s 20s and never really ends knows that dressing up can feel like an expensive chore. You can’t really help it that you’re popular or that your friends are in love, but preparing for these celebrations and gatherings doesn’t have to break the bank.

• Shop smart: Knowing where to buy occasion wear is half the battle, and not everyone’s recommendations will fit your idea of what’s affordable. The easiest and least expensive option is to browse what online retailers like Lulus and Asos have to offer. There are also fairly affordable sustainable brands like Reformation whose garments may incur a smaller carbon footprint. Second-hand and consignment stores can also have gems from high-quality labels. If you can’t find any such stores locally, the RealReal and thredUP resell clothes from luxury and midpriced brands. 
• Rent, don’t buy: Truly no one needs to own a ballgown. Companies like Rent the Runway (now offering an Unlimited subscription service) and Armarium let you pick from a trove of designer offerings, then return the wares after your special occasion is history.
• Rewear your look: It can be costly to buy a new outfit for every occasion on your social calendar. If you purchase pieces that are basic enough (the simple black cocktail dress, for example) you can wear them over and over again. Tiffany Haddish has done it on the red carpet, and we all stand to learn from her eco- and budget-friendly example.
• Ask a friend: Maybe you know someone who has a dress or a suit you can borrow. Think of it as a rental, but free! But make sure to offer to pay for their dry cleaning so that the loan is no imposition.

How to Make it Look Good

Speaking of which, clothing – especially dressy clothing – should not simply be worn. It often requires alterations or D.I.Y. hacks to look as good as possible. And, crucially, garments should be cared for, especially when they are costly or beloved. Here are some things to consider:

• Alterations: If you’ve purchased a piece that doesn’t fit quite like a glove, or you have a well-worn outfit that’s due for some fixes, you might want to visit a tailor or a dry cleaner who performs alterations ahead of your event. Before you just walk into the nearest shop, it’s worth asking friends for recommendations: Once the fabric is cut, it can’t really be restored. Wherever you go, make sure you drop off the garment at least three weeks before you’ll need to wear it. 
• Shapewear: Let’s start by saying that everyone’s body is wonderful and nothing must be done to make it look good in a dress. But, if you would like your clothes to lay smooth and flat on your person, there are plenty of things you can buy. The folks at Spanx and Commando produce seamless undergarments that are virtually undetectable underneath even the slinkiest dresses. 
• Tape: If after the alterations and shapewear, something about your outfit still feels precarious, there’s always good old tape. Kim Kardashian proudly uses it to secure her dresses and decolletage, and she says gaffer tape works best. There’s also fashion tape and toupee tape, which are really just two types of double-sided tape with fancy names. 
• Ironing and steaming: Creases can put a wrinkle in anyone’s plans to look great, so before you go out, consider ironing or steaming your outfit and putting it on a hanger so that it retains its polished appearance. Our friends at Wirecutter recommend Maytag's M400 iron for those who are in the market. Handheld steamers are a great investment, too, as they travel well and work like a charm.
• Cleaning and other garment care: It’s worth noting that your wares will get dirty. Our friend Alainna Lexie Beddie at T Magazine has solutions for all of the stains and scuffs your clothes and shoes are likely to incur given your busy social schedule. 

How to Upgrade Any Look

Sometimes a dress code can feel rote – more like a uniform than an expression of personal style. This is especially true if you’ve built up a wardrobe of rewearable pieces and they’ve each made appearances at several occasions. Here are a few ways to make sure your outfit comes together and feels fresh:

• Accessories: By this point, you’ve picked the perfect outfit. You will look great no matter what. But if you have the time and means, consider the distinguishing details. Have you thought about jewelry? What tie you’ll wear? How you’ll carry your necessities? Whether you’ll need a coat, and which one to wear? These questions are best addressed at least a week prior to the event, so you have time to shop or borrow from a friend if needed. Or maybe the answer is in your closet. If you always sport a silk tie, for example, you could try that knit one you got as a gift but haven’t worn yet.
• Hair: Maybe you show up to work with wet hair every day. That’s O.K.! But you probably don’t want to do it on your best friend’s wedding day. Special occasions can present an opportunity for a haircut (at least a couple days in advance), or a hairdo (likely the day of). As long as your hair doesn’t appear visibly slept-on, greasy or otherwise unkempt, you’re doing fine.  
• Nails: Again, none of this is obligatory, and you should only do it if it makes you feel happy. Does getting your nails done make you feel happy? Yes? Then do it! If not … maybe just cut them and make sure they’re clean.