Comes in handy when the thirst strikes. Well, staying hydrated is the key. Drinking stuff that has caffeine in it tends to give you the opposite effect, since caffeine is a diuretic. For those of you like me, you may not be exactly up to the fizzies because of the burp factor. Okay, laugh now, but wait until you have to clean out the car or the bathroom in your apartment.
Paper towels are nice to use instead of tissue.
Actually, one hint I picked up from an ex-fast food employee is to use newspaper instead of paper towels to clean glass, since newspaper has a different kind of absorbency. There's nothing worse than figuring out that you have something stuck between your teeth. Say you have a gig and they feed you before you go on. Talk about flying food particles. Your dentist may applaud, but there's a serious hygiene issue here.