So the picture in my head IS quite doable. After messing around with this most of the morning I can see that this is something that is very achievable to place in my store.
Bill comes home for lunch and I'm so excited to show him this, and do you know what he said? "Now THAT'S really neat! Would be a good tool for keeping mileage and gas receipts." Yep, that's my man. Isn't he something?