Your car's tyre pressure: Make sure you pay attention!
Whether stationary or mobile, gauges that allow you to reliably check your tyre pressure can be found at most petrol stations. Take advantage of this and make regular checks a habit.
The best time to measure the air pressure is when the tyres are cold or have only travelled a short distance. If the tyres have heated up too much, then the measured values will be wrong. It's best to head for the nearest petrol station directly when you start driving.