Carry small dollar bills before you walk to the village pupuserias

Before you leave the house, check your wallet for small bills. The US dollar is the currency here, which makes life easy, but a pupuseria in the village is a small place, and a large bill at lunch means someone has to go and find change while the line waits. Then order, eat, and pay with what you counted out. I do this walk most days and I have been the person with the large bill more than once. It is not fun for anyone.