The pennies add up fast

Do you stop to pick up a penny laying on the ground? Strange as it seems, most people don't. Little kids will pick it up but adults won't. The adults think that the penny is now worthless, but I say they cannot be farther from the truth. I know of a woman in Florida that collects aluminum cans all year long and what does she do with the money? She takes cruise ship vacations! How is that for pennies adding up?