Relax. We're not really suggesting you stuff some bras for Christmas. Though, you could stuff your stockings with bras! And also bracelets, wallets, scarves, necklaces, rings and slippers. Pretty much anything you like, really. Just nothing perishable. Or alive. Or alive and perishable. Ew.
In this instance, we're referring to surprise goodies you hang in a fuzzy sock over the fireplace, and not your Great Aunt Hildi's queen-size panty hose.