Duty Dollar
A paper dollar bill used to wipe your ass if you happen to run out of toilet paper and have some "mad" money on you. Recyclable and washable , also good for the environment.
It was Bucks lucky day! There was only one gas station in 100 miles and he had to take the worst dump. He ran into the bathroom and pooped so quickly he didn't happen to notice the toilet paper was all gone. Luckily he had shoved a duty dollar in the front of his overalls in the pocket after getting a fish sandwich from the previous gas station.