GRABIT Screw Remover

If you have a screw or bold that is not counter sunk, the IRWIN powergrip is great.

http://www.irwin.com/irwin/consumer/images/large/394100_lg.jpg

For larger diameter bolts, the bolt grip is great.

http://www.irwin.com/irwin/consumer/images/large/394001_lg.jpg

And for stripped lug nuts, these bad boys are awesome. (up to 1" diameter lugs)

http://www.irwin.com/irwin/consumer/images/large/54125_lg.jpg