Extend the life of your wiper blades.
Take a clean rag with a small amount of dish soap and run the blades through the rag removing grime on your wipe blades.
Don't run your fuel tank low.
Did you know that most newer car fuel pumps are located inside the fuel tank? Running the fuel low increases the fuel pump heat (fuel keeps the pump cool). Heat is the main reason that fuel pumps fail and lead to very costly repairs!