I carry those disinefectant wipes with me. When I get on a plane or train, I wipe down the seat arms and the tray, even the remotes for when I am on a plane and the TV screen. I use the wipes for disinfecting the grocery carts, particularly the seats where parents sit their kids with smelly diapers. If I am eating in a restaurant I wipe the chair, etc., and I don't care if people think I'm nuts.