HopSwap, an annual community-wide tag sale, will be held Saturday, March 18, from 9 a.m.-noon at the Hopkinton High School cafeteria. Donations — children’s clothing up to size 14, maternity clothing, baby gear, shoes, costumes, toys, games, sports equipment, bikes, books, DVDs, CDs and other gently used children’s items — can be dropped off on Friday, March 17, from 3-8 p.m. at the cafeteria. Items must be clean, in good condition, with all parts securely attached. Proceeds benefit HopMoms and HPTO selected charities. For more information, visit the HopSwap Facebook page.