Li-Poly battery maintenance

I wonder if someone here have any advice on how to improve Li-Poly battery life in notebook.
This type of battery is often said not to be sensitive about charging/discharging habits, but I am sure that there are some things to avoid to increase the battery life.
Keeping the temperature low is of course quite obvious, but what about charging? There are many hints around the internet like "recharge up to 85% most of the time", "do not leave notebook on permanent charge", "from time to time let the battery to discharge completely". Can anyone confirm those suggestions or share his own thoughts and experience?