Found a Penny at the Grocery Store

Today I went to the post office, but I just spent money. Didn't find any.

Then I went to the dollar store. Same thing.

Then I went to the grocery store. I spent money and found a penny on the floor!
Facts About This Found Money
Denomination:  1 penny
Year:  2006
U.S. Mint:  D
Condition:  tarnished with shine peeking through
Total Found Money in 2014 to Date:  $26.88