Ok, I have seen everyone use these little guys but I have very limited experience with them myself. I have used a little laser chalk line to help align bathroom partitions and i used a laser plumb bob to help me locate the pivot point for a floor door closer that I set. That being said, I feel the need to buy a nice cross line level but i am not sure how i will really use it. What do you use yours for and how has it helped you make more $, compared to the old ways.
BTW, most of my work is commercial door and frame installation, with some bathroom partitions thrown when I cant get out of it.
Also, What are the best units for the price?