Grooves Between Tire Treads
What are those indents on the tires for anyway? Apparently, they will show you the state of your tires. The lowest part of the grooves shows the lowest point the tire can get. If the tires are smooth, it means that you should get them replaced right away.
Gas Pump Latch
If you have noticed the weird latch on the gas pump, you should make sure to take advantage of it. You do not actually have to hold the gas pump while you refuel the car! You can just lock in the latch and let it do the rest of the work for you.