Notices posted at Costco this week indicate the store is no longer accepting returns on key items that many are stocking up on the wake of the coronavirus pandemic. The signs, posted by several Costco Instagram accounts (not affiliated with the store itself), indicate that returns are not being accepted on toilet paper, paper towels, rice, water, sanitizing wipes, and Lysol. It's not clear if the new policy is store-by-store or part of a national corporate push.