theyomper

I use a Stanley CL90 which comes with a staff, I also have a small tripod that I can attach it to. It's self levelling with various lazer options. I find it invaluable and time saving for lining up. I paid £120 for it brand new, a lucky hit on a well known auction site, my mate recently investigated and came back with the cheapest at £240. As Grumpy Grouter said when you really need one buy one, but personally I find them useful.