Always make sure that your windshield wipers are fully functional before driving
De-fog and clean your windows before driving
Remember to reduce your speed, as it takes longer to stop or react in wet weather
Try to stay towards the middle lane, as water tends to pool in the outside lanes
Maintain sufficient distance with the car ahead of you and try to drive in its tracks
Avoid following large trucks or buses, as the spray created by their large wheels will reduce your vision
Avoid using the brakes to slow down, if possible, and take your foot off the accelerator instead
Be cautious after driving through deep puddles, as your brakes may not be as effective afterwards. When passing through a deep puddle, and before having to stop again, test your brakes by applying them lightly to dry them out (after verifying that no one is following you too closely)
Never use cruise control, as there is a chance that your car might actually accelerate if you "aquaplane"
Pull over and wait for the rain to stop if it's raining so hard that you can't see the road or the car in front of you
Avoid splashing pedestrians!