Well, that's it. From this day forward, I am geared for the Standard American Equivalent. I just dumped all of the rogue belongings I had that worked on the metric system, mostly all just sockets and wrenches. I have expanded my redundancy on SAE sockets and wrenches, nut-drivers and so forth. While I do come across metric nuts and bolts every once in a while, I shouldn't, and from now on they will be destroyed by removal. My overall efficiency will be increased by trading the space and weight those tools took up with other things, and while I can take more then I can carry, it's less then I can drag around. If space wasn't a recurring issue, i'd keep them around, but the tally of what's necessary balanced against the space and weight limits imposed on me read out that metric sockets and wrenches get in the way more then they get things out of mine. When I do randomly come across one here and there an adjustable or pair of vise-grips should get it, but if not there is an angle grinder or drill within arms reach to murder it with. I'll miss them when I need them, but it's so rare I can deal. It does feel odd going to a job without the 'proper' tool to handle something simple like a bolt, though, and I think that is what's bugging me the most and will take the most getting used to.