Split Ends Question? 10 points for best answer.?

My hair is extremely damaged at the ends and I need like an inch cut off which i will get done soon. The ends have an offshoot and right angle split ends. I have only found one actual split. I never get split ends that actually split. But I hate the offshoots and right angles because they look like i have a permanent crinkle in it. It looks terrible. I want to know how to prevent bad hair damage. I know to take good care of it, no duh, but can you recommend any good products / shampoos and conditioners. Any other tips? Thankyou (: