one tool that hasn't been mentioned yet is get a good set up of dental picks for getting crud out of screw heads and stuff like that. also i bought a Wiha ball end hex driver set that consists of a handle that basically has a chuck on it and allows you to swap in different drivers of different sizes its not a cheap set up but its the nicest thing i have ever used, it has a free spinning knob at the end of the handle so you can hold it in a screw head with enough pressure with your palm and turn it with your fingers.