Funny thing about this topic is, my observation is every person I've seen use wipes to wipe down the cart first grabs the cart to pull it from the other ones, then grabs the handle to come into the store pausing in everyone's way in the doorway to get a wipe and wipe down the cart handle. Then they grab the handle again and go on their way.
What good is grabbing the handle, then wiping it down, then grabbing the handle again with the same hands you grabbed it with before wiping it down?