Plato's Closet, a store that buys and sells gently used clothing for teens and 20-something boys and girls, is holding it's grand opening celebration June 29 beginning at 10 a.m. There will be a ribbon cutting ceremony, giveaways and the first 25 customers will receive a goody bag. The store is located at 500 West Aurora Road Suite No. 165 in Sagamore Hills, next to Marc's.