Twofer

I picked up Chinese food for dinner on the way home from the gym last night. Naturally, the cashier gave me my change with the fewest bills and coins she could, but I realized that, with one simple substitution, I could have had a two-fer.

My change was $12.72. I received a ten dollar bill. If she had given me two fives, I could have had the following.

Two five dollar bills
Two one dollar bills
Two quarters
Two dimes
Two pennies