I don't really like mini-tools. Their wrenches are far too short to reach the bolts on my brake levers, into my stem, etc. I'd get a combo-allen tool from your local auto parts store for $4, a very small allen driver for a dollar or so, a spoke wrench, chain tool, and put all of this into your seat wedge. Sure, it takes up a tad bit more room, but it's a LOT more useful.