Riding in the rain... like on my ride home tonight.
No riding over manhole covers, if at all possible
Hands off the brakes when riding over painted lines and marking
try to ride straight over lines and other markings if possible,
same with train and light rail tracks
lean your body more while turning as opposed to leaning the bike (I find it keeps the bike more upright)
get a good fog solution for your visor ( I had to stop and get a fog city visor insert tonight)
ease up on the accelerator when starting (easy to spin that rear wheel)
start braking sooner and ease into them and increase pressure slowly as the grip increases
wear lots of reflective material, your were hard to see before, you are harder to see now.
Here is my latest addition the "see me" battle on the roadways. It's called an H-belt and they are impossible to find the in the US. I had a friend from England bring it over on a trip to CA. Thought my riding coat was pretty visible. You can see how much more visible I am with the addition of the belt. The back has more. The yellow is that day-glo green/yellow during the day and this yellow at night. my coat is white reflective. All of the reflective on me is 3M made.