2) Out of Bounds.
3) Greenside bunkers to a tight downhill pin.
4) Fairway bunkers greater than 80 yards from the pin.
Actually, that's a great list. Very true. I stay away from the wet stuff and OOB, but #3 is a bit of an issue. I get too aggressive on the approach, and a slight mishit (there's a few on Pinehurst, from memory, especially) where you slip off into the sand and forget about par.
Fairway bunkers it's usually a matter of being lazy and rushing the shot instead of properly allowing for margin-for-error on the shot.