A magnetized level is perfect for use with metal studs because it lets you work with both hands free. Thanks to Bostitch's new 4-foot aluminum Clamping Level, the same idea can now be applied to wood studs. Clamps fold out from either side of the tool and grab onto the edge of 2-by lumber; when not in use, they fold out of the way.
Price: $80 ($60 for the 2-foot model). 800-556-6696. www.bostitch.com.