Wired’s Gadget Lab has a quick rundown of the Park Tool Cable Stretcher.  I haven’t had to use this yet, so I’ll have to take their word for it that it’s a recommended tool (when hasn’t a Park Tool done the job well…).

From Park Tool site:

Commonly referred to as a “4th Hand”, the Park Tool Cable Stretcher pulls cables tight. It features one-hand operation with a thumb lock to hold the cable tight while your hand is removed to tighten pull-up bolts and nuts.

I’ve been looking around for more tools to help me with repairs, and tuneups, and this has definitely been added to the list.

[via Wired Gadget Lab]