Ryobi AIRgrip ProCross Laser Level
Home Depot now has these for $50. Given my past experience with cheaper laser levels I picked one up half expecting to return it. But this is a really cool device! It really does grab onto walls. Its bright lines really are self-leveling. It’s easy to micro-adjust to exactly the point you want it.
It made it so easy for me to hang shelf tracks and nail up chair molding that I decided it belongs on my tool shelf (in its neat soft-sided storage case).
[...] top of the shelf panels. As long as this track is secure and level (which is easy to ensure with a good laser level) everything else falls into place. Granted, that is followed by a whole lot of screwing — cam [...]