Also, check tires that have not been driven (even a mile) for four hours. If you don't have a compressor/pump at your house, check your pressures (ALL FOUR), note the pressures (write them down), drive to the station, recheck the pressures, then you know how much to add at the station.
Check your tires every month. They are the only part of your car contacting the road and the most important safety item. Don't buy re-treads. Don't patch sidewall punctures. Drive safely.