When I was in high school, I used to visit a store on State Street in Madison, Wisconsin called Knuckleheads. They sold all the things you'd normally find at a head shop, but I was only interested in procuring a few cigars. Since Madison was a college town and I was already over 6 feet tall then, they never asked if I was over 18. Knuckleheads had a sign on the register that seemed very progressive to me. They refused to accept pennies as payment. Things were priced to the nearest nickel, and they rounded down to the nearest $.05 when you checked out. Not accepting "legal tender" seemed like a major civil disobedience to me, but I liked their logic about the wastefulness of pennies. So far, it seems like that movement has yet to catch on, but I'm sure Knuckleheads is still at it. I've since learned not to look to head shops as harbingers of the future.