Stanley 4-in-1 Pen-Sized Screwdriver
Precision screwdrivers and more that fits in your pocket! Has magnetic non-slip bits. Being the size of a pen, you can quite literally toss it in a pocket.
Made by Stanley, a quality long-time hardware manufacturer, so you know it's good.
Has both a regular and Phillips head on either end. It sports two double-ended bits, sizes 5/32", 1/8", 0PT and 1PT. The bits have yellow on them so if you happen to drop them, they are easily spotted.
Very cool for $3 bucks shipped!