With the development of the economy, loose change (零钱) is often ignored (忽略) by most of us. We have forgotten how those little, round metal pieces can add up. However, if you were a kid that had to clean the house for extra (额外的) money, you' ll understand how important it is.
When I was a kid, I knew my parents could afford whatever I wanted, but Dad made me work for things that were "wants". I knew Dad always carried a lot of change in his pockets. He had taught me that enough pennies (便士) would still get me what I wanted in the end.
Dad had his favorite reclining chair (躺椅) in his room where he would go after a long day at work. When he reclined in the chair, the change would fall from his pockets onto the floor under the chair, which was really a good chance for me to collect pennies. I'm sure he realized he had empty pockets when he took his clothes off, but he never said anything and never stopped sitting in the chair.
My kids learned early that change worked just as well as dollars and they also knew their dad saw no value in change. In fact, he saw it as a pain-in-the-neck so instead of asking him for money, they always asked if they could have his change.
Whenever I see a penny on a floor, I always pick it up. They've come in handy over the years, like at the check stand when someone needs a penny to check out, or my children are twelve cents short of their bus fare -- little things, but important things.