For anything longer than 3 days, in addition to the Kwak tool kit I carry:
12mm allen wrench for the front axle.
10, 12, 17mm combo wrenches.
10, 12, 17mm 3/8" drive deep sockets.
3/8" drive flex handle (non ratcheting).
12v compressor (many varieties to choose from, pick small)
Fresh pack of sticky-string tire plugs, don't forget the reamer and insertion tool.
Credit card, duct tape, some baling wire, and a barely discernible pack of Beech-Nut gum (aka a gravel bar). Oh, and water.
Nitrile gloves are always in one fairing pocket, along with a small rag or two, spare bulbs, and a beater set of 'shop' leather gloves.
Rick