You look down at your hands, they're covered in dirt and grime. You've been working on your yard all week and now you just want to sit down with a cold drink and a sandwich. The next best thing is to grab a tall glass of water, but where are you going to put it? Why don't you put it in your mouth? That old bottled water dispenser that came with your house probably works, but it's bulky and won't fit anywhere near-or on-your mouth comfortably. Do you have any idea how often you use dental floss? I do my best not to bite my fingernails, but even then...