Save money on cars, cleaning, clothes, college, computers, exercise, food, gas, housing, movies, shopping, taxes, toys, travel, water, work, and many other ways to save money.
When I was younger, I left all my pens with the cap off when I wasn't using them. Many kids probably do this. I wondered why my pen ink was gone all the time. The pen dries out if you leave the cap off when not using it. Always cap your pens.