On a more serious note, members of this club have died driving their cars in heavy rain whilst driving to the conditions in an appropriate manner.
So joking aside;
Make sure you have your lights on.
Drive at a speed that you can stop in the distance you can see on your own side of the road.
Don't be afraid to slow down, it matters not if you have a queue of cars up your backside, drive at a speed you are comfortable with, as long as the above applies.
If you hit standing water, then come off the gas, hold your steering wheel tight and keep the car straight. Do NOT brake, steer or accelerate, because your tyres won't have it and you'll end up aquaplaning or skidding.
Arrive alive.