Locally I use the factory tool kit, adding 2 of each fuse, phone charger, flashlight, spare key, electrical tape, tire gauge, pen & paper and leatherman.
On longer trips I add (on top of tools above) flashlight batteries, duct tape, wire, 14-16 ga electrical wire, posilocks, positaps wire stripers/ needle nose pliers, needle nose vice grips, screwdriver w/ multi tips and magnet extension, 1/4" drive ratchet w/ 8/10/12/14mm sockets, 8" adj wrench, file, wrenches 8/10/12/14mm, assorted hose clamps, spare H4 bulb, assorted zipties and medicine bottle with spare bolts washers, nuts, cotter pins to fit bike.
I really need to get a tire repair kit with air pump to add to the kit. What do you use for a air compressor? I found this one:
Cycle Pump. It's not cheap though @ $100!
EDIT: I completly forgot about the allen wrenches, need to add that to the checklist.