It’s been over three weeks since my last haircut, and the urge to get it cut again is killing me. I’m accustomed to having longer hair now; that’s not the issue. The problem is that weekly haircuts keep the ends of your hair neatly trimmed to the same length, and the shaggy look of uneven ends bothers me. Everyone else seems to suffer from the same phenomenon of uneven hair, but it’s still a little disconcerting.