Riding in the wet

[know your limitations]

Just avoid hard accelleration and braking. People will tell you to avoid manholes and white lines, but if your speed is constant, there's no need to slalom around everything as though they're bags of nails  :lol  .

:agree
Add to that, avoid sudden changes of direction. Even crossing lines and cat's eyes for overtaking can be trouble-free as long as you don't swing out and swing back in at an angle.
Remember, the gyroscopic effect of the wheels turning will always mean the bike WANTS to stay upright
I also prefer taking a tighter line when cornering. It reduces the amount I have to lean and means I can use the width of the lane as I progress through the corner. If you start your cornering from the middle of the lane, You leave yourself less margin for error if you have to straighten quickly or you get a twitch from the tyres. As said though, the tyres won't just give up their grip without warning (save for the obvious reasons), they will give you a yellow card first.