I should add that if you KNOW the hill well, it is really to your advantage. If you don't know when it ends and/or when it gets steeper, you risk blowing up before the top or not pushing hard enough and having too much in your tank at the top.

Some of my favorite hills I have virtually memorized, so I know exactly when to change gears, when to stand up, etc. Take a nasty hill near you and make it your b!tch. That's my suggestion.