Kids often outgrow their clothes before they see any real wear and tear. If a younger sibling isn’t waiting in the wings, consider selling some of your child’s good-as-new threads to consignment shops. Here’s how.

>> Before You Schlep a sack full of clothes to the shop, call ahead to ask them what items they need at the moment—if it’s the middle of summer, they won’t want wool coats—and tell them what you have to offer. Consignment shops are constantly seeking to replenish their stock, so find out what’s selling out. Since most shops are by appointment only, you’ll need to set up a time for them to view your stock. If you can’t get an appointment for a few months (which happens frequently) check back closer to the day to see if their needs have changed.

>> Assess The Condition of your clothes. You can’t bring everything that doesn’t fit anymore. Make sure the clothes are wearable and, most important, that all the snaps and buttons are secure and working. Brush off any pet hairs and bring only clean clothes. Run them through a wash cycle before setting them aside.

>> Your Cut Of The Profits will most likely be a predetermined percentage of the sale price (usually between 30 and 50 percent). Ask if you can sign a contract, and agree on the price beforehand. If you paid more for a specific item (or even if it has significant sentimental value) don’t feel bullied into a lower price. You’ll also want to know how long the clothes will remain on the floor, and what will happen to them when the consignment period is up. Some places will return if they don’t sell, others will offer to donate to a charity.

>> Our Favorite Shops: Children’s Resale; 212-734-8897; and Jane’s Exchange; 212-674-6268.