I used to wear a pouch every day with every tool that could reasonably come in handy. Then somebody pointed out to me that tool belts are very bad for your back. So much so that apparently around here if you work union you aren't even allowed to wear a tool belt. So I started wearing my pouch less frequently...and I found that I needed it less frequently. In my coveralls I keep: Kleins, side-cutters, Klein 10-in-1, tape in one front pocket, marrettes in the other pocket. In one chest pocket goes my notebook, pen, pencil, sharpie, tie-wraps and chewing gum, other chest pocket gets the cell phone and voltage tester. All that and still nothing in the back pockets. If needed I can still fit in my tape measure, torpedo level and strippers. Any more than that and I just put the tool belt on! Plus I always keep my tool pouch(es) close at hand just in case.
Bottom line...my back thanks me.
As for a Leatherman, I've never owned one. I've wanted one, just couldn't find a good enough reason to spend that kind of dough on a toy.

Shawn.