OK, I am an admitted tool fiend/hoarder and have no intention of changing. I love me some tools!!!!! I find it very frustrating to be in the middle of a project only to run into a brick wall because I don't have the correct tool to proceed with no way to make the tool I need to keep going. ARRRGGGGHHH! Anyway, what specific tool do you use the most often that provides the best result quickly. Mine is a laser chain/wheel alignment tool I find rather fun to use, plus, it insures the most accurate alignment of the rear wheel and chain. Next is a Makita 12V lithium impact wrench that is rather low on torque so it is useful for small fasteners without fear of stripping as long as you are gentle. I use this tool to remove fasteners and only to snug them down, then torque them manually. Experience.