...runoff from the other place.
So, I calculated 20 percent of my bill on the customer copy of the receipt, and decided to leave the exact amount: $1.52. I had only saved 48 cents, but I felt like a money-saving genius. How many times had I left more than what is customary just because I didn’t want to do the math? Here was a way to save that I had completely overlooked in my efforts to cut costs.