Carry a small Rat Shack mini-multimeter; that helps a lot when trying to track down gremlins whilst on the road. Toss out the toolkit that came with the bike, and replace with a decent set. There's always the compulsion to bring too many tools when on the road. Keep it simple- a few allen wrenches, screwdriver, a 10,11,12,17,19 mm set of wrenches. Pliars...or 'plars' depending on where you're from. Replace the oil filler cap with one that you can loosen by hand. Extra fuses, a visa card (it's everywhere you want to be, TM) and you're set.
Cheers,
Jason