Hop over to eBay and pick up this Worx Cordless Screw Driver for only $15.99 and free shipping! It includes a rapid reloadable cartridge that houses 6 common screw driving bits, making it easy to access and even easier to change. Go from driving a Phillips screw to driving a flat head screw in a matter of seconds with the slide-action bit changer.
It also includes a flexible shaft. This bendable shaft extends the reach of a cordless driver. Excellent for reaching around obstacles and into awkward areas.