Don’t Take Off Your Shoes
Don’t walk around a plane barefoot. Just don’t do it. Planes are unhygienic and full of bacteria, yet you inexplicably see passengers going to the bathroom with naked feet. And that’s not always water on the bathroom floor. Also, don’t put your bare feet on the armrests of the seat in front of you. Actually, don’t put your feet there at all. Your fellow passengers do not need the germs you’ve carried back from the bathroom floor on their armrest.