I shelled out the cash for a new AR trigger. My factory trigger was a serious turd! I dropped in the 4lb Timney trigger (they make a lighter one) and it is AWESOME! It took about ten minutes and my trigger went from about a 8 lb, gritty with a mile of creep trigger to a sublime 4 pound trigger. It breaks clean and no creep.
The Timney triggers are not cheap, but boy are they worth it.
Anyone who wants to try it can come on up to NE Ohio....bring your own ammo. :)