Item #69243
Self-Leveling Laser Level - PASS
http://www.harborfreight.com/Self-Leveling-Laser-Level-69243.html#.UzRPYyi0JlI
I pick this up a month ago to hang 27' of pegboard and framing in my basement, and lay out for my benches. My floor is wavy, and the foundation isn't level or plumb. The thought of fumbling with a chalkline and tape while balancing a 6' level didn't appeal to me. Neither did the thought of asking my BIL to help while I coached him on how to hold a piece of string up against the wall (in excruciating detail) while he complained about the chalk getting his hands and team jersey dirty.
I picked the laser up on sale for under $50. I was worth the expense. It made the project go faster, avoided a lot of aggravation, and kept a level line in an un-level environment. Even around an inside corner.
This isn't a heavy duty level, it's lightweight and won't hold up to a busy construction site. The beam is hard to see in bright light (the red goggles that are included help, but not by much). It's fine for a handyman, or occasional use on a quiet jobsite. But don't expect it to be able to handle being knocked around. It's a step up from those cheap "hang on the wall" picture hanging laser levels available at the local hardware store.
The next job will be to set up for my benches.