hadleman,
I carry very few tools. One multi tool, and one small pair of aluminum pliers. Maintenance is just keeping stuff lubed but not overlubricated so that you end up with caked on junk everywhere. So, I use Pedros Wax lube and always have a dedicated cloth to wipe off all excess from chain or wherever I apply the lube. Air the tires. Carry spare tubes, patching stuff, and one spare folding tire. Thats is for me on any tour in the U.S.