Medium-size tool bag with basics. Slot-pockets on the outside for ready access to #1 & #2 screwdrivers, flashlight, a stretch of paracord, a Cresent wrench and pliers/channel locks. The inside houses wrenches, ratchet, sockets (basic 3/8" drive SAE & Metric), teflon/electricians tape, dikes, side-cutters, zip-ties, utility knife, multi-bit (1/4" hex drive) screwdriver set, Vise Grips, large channel locks, torx & hex bit sockets (motorcycles), etc. My 1/2" drive torque wrench, used mostly for wheel lug nuts, has a separate, dedicated case.
The bag is always in the truck. It doesn't rust, won't dent, it's easy to grab/carry, the zipper is secure and it (somewhat) compacts to the size of the contents.
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