I get boxes of alcohol pads in individual packs and keep a few of those in my purse when I go anywhere. These are handy for any number of things.
I keep a box of wetones in my car, for purposes of washing my hands after I have been in the grocery store and handling those yucky baskets..... call me a germaphobe I guess..... but wow, the way things go around anymore and I seem to catch EVERYTHING anymore.