A: Remember to put air in your tires.

B: How often do I have to do that?

A: Once every two months.

B: That’s a lot.

A: What do you mean?

B: That’s six times a year!

A: Yes, and it takes about five minutes each time.

B: I’ll try.

A: Check your tires or you’ll get a flat.

B: Oh. That’s not good.

A: No, it isn’t. A flat costs you time and money.

B: And I don’t have either.