There's no more a glaring admission of human error than unaligned furniture in the house, but the Pen Line Laser Level by Bosch may be about to straighten things out. Priced at $40, the versatile tool can be attached to a wall holder by magnetic application, enabling the easy adjustment of the laser pointer to project a straight line along various surfaces, while the wall holder can be affixed to a wall using nails, pins, screws or adhesive tape.

The holder also comes with two vials, which gives it the added performance function of acting as a conventional spirit level. The laser can be pointed up to a maximum of five meters across a variety of horizontal, vertical and angled vectors, and is no thicker than a ballpoint pen.