I've heard great things about these multi-tools and finally decided to pick one up. They're $29.99 + $5 shipping over at Woot today (MSRP is over $100, around $60 @ Amazon).

They allow you to swap different tools in the handle, so you can configure it exactly how you want. They weigh 9.3 oz, which is 5 oz less than my beloved Leatherman.

For those who carry a multi-tool, you might want to consider the deal.

http://sellout.woot.com/