One of the most important tools any computer technician will ever have is his handy-dandy screwdriver(s). As such, everyone has their own personal favorite style and size. Here are three quick options that I have seen (and used) over the years:
1.) Get a good pocket-sized pen screwdriver for those quick fixes. The one I use ($5 on eBay) has changeable heads that can be stored in the handle and has a magnetic head for those dropped screws. It would not hurt to have a full-sized and a precision-sized screwdriver, although the precision driver will handle most computer jobs without fail; just keep a good variety of heads with you. Make sure you can also find the T3, T4 and T5 Torx heads for cell phone repair.
2.) Forget the “basic computer kits” you find everywhere for about $10-$15, the fixed handle screwdrivers are good, but they clutter up your case. One of the most efficient kits I found was at an auto parts store for $5. It contained a good precision driver, lots of interchangeable heads, a bendable extension bar for hard-to-reach screws, and even a magnifying glass (great for small print on motherboards). Find the kit that works for you.
3.) Don’t limit yourself to computer stores only to find a good screwdriver kit. Especially around Black Friday – Christmas you can find several nifty kits at department stores as well in the men’s gift sections. I found a terrific kit for $15 with a full-size screwdriver in the shape of a T, which gives me extra torque for tough screws and, of course, lots more interchangeable heads and a great straight extension bar.