Always having and automotive inflator.
If you let your car sit at all, the tires will most likely go flat. So you have to drive to a gas station to pump them up. Driving a car with flat tires can damage your wheels. So having an auto tire inflator on hand can potentially safe you from expensive wheel replacement costs.
Inflating Your Tires
First of all, you should find the optimum pressure for your tires. This will be on the inside of your driver's side door, glove compartment, or car manual.
* Plug in your tire inflator into the the cigarette lighter or house output.
* Unscrew the plastic cap on the air valve and put it somewhere you wont lose it like inside a cup.
* Screw on the nozzle of the tire inflator and start filling the tire with air.
* Most gauge that will tell you how much air pressure is in the tire.