I was at my local Costco buying diapers the other day and found myself (as usual) wandering around the tool aisles. I came across this nifty little rolling mechanic's tool cart. For under $70 it wasn't bad. it had two lower drawers and the main tool spot up top had a sliding two-piece cover with rubber pad.
I do a lot of wrenching in my driveway, so after a while running back and forth through the garage gets a little old. If I got this I'd be able to keep a selection of tools I frequently use on-hand wherever I happen to be wrenching. But then I'd also have to put it somewhere. As is, my garage floor space is completely full. Time to find something to stick that Olds 455 in that's sitting in the corner of my garage, I think.