Early h3 vs the King's Indian
Since I usually open with 1.c4 or 1.Nf3 or 1.d4 I see a lot of King's Indians. One of the approaches that I have thought deserves more attention by white players is to find ways to avoid an early push to d5. By maintaining tension across d4/e5 black is pressured to come up with an idea. Exchanges on d4 usually favor white, and if the tension stays, c5 and e5 are not available for black's Knights.
Two systems which allow white to maintain central tension are the Saemisch variation, where the pawn on f3 helps the cause. Another system that permits white to hold tension in the center is with an early h3.
In this game, white holds the tension, Black exchanges on d4, and soon Black's King is under assault. It's a pretty good example of what I'd like to do to every King's Indian I meet.