Unfortunately, National Costume Swap isn't happening in 2015. My eight-year-old daughter is the Imelda Marcos of costumes. Every Halloween she's invited to a terrifying number of celebrations and she insists on a different outfit for each one. I happen to love dressing up, too, so, I admit, I indulge her. Trouble is, she outgrows her costumes much more quickly than I do mine—we never get more than one Halloween season out of them.

Instead of throwing all of those barely used costumes into the donation bin (or worse, the landfill), we've found a better, eco-friendly option that saves us money and is actually pretty fun: Halloween costume swaps. At these community events, you trade your child's old costumes for new-to-you outfits. My daughter enjoys tearing through tables piled high with outlandish getups, and I love hanging on to my cash.

Costume swaps have really taken off in popularity in recent years as families become ever more frugal and environmentally aware. In fact, there's even an annual National Costume Swap Day! This year's edition officially takes place on Saturday, October 12, but local community organizations across the country hold costume swaps on various dates throughout the month. We've got the scoop on how to find costume swaps in your area and tips on how to host your own.