How many use towel wipes when entering the supermarket? The purpose is to clean your hands and the cart handle so as not to be contaminated by previous shoppers, right? Fast-forward 20 minutes or an hour if you’re a senior. You have touch produce, cans, bottles, and meats in questionable wrappers and place them all in your shopping cart. What good did the entry wipe-down help you? You need a shower upon exiting the store but settle for an exit wipe-down.