Man, hold on. Your boss wrote ADD 3 on the back? That would've wrecked me completely. I'd have been adding 3 inches to every single cut all day, wondering why nothing fit, and Ray would've been standing there watching me build a house out of spaghetti. Did he mean only when you're pulling against a wall? Because 3 inches is such a weird number too, not 2 or 4. I keep a pencil in my pouch and still scribble cut lists on whatever's handy but I never thought to use the tape itself.