this is the kinda stuff i love too
i'm outta the 'loaded touring' community both on and off-road (longest ride Kiruna to Messina) (Way back)
*touring wheels 48 spoke 4 cross double walled* still broke some spokes and a lotta stores in europe didn't have
spokes (right size) or (spoke threader/cutting) my first tours loaded were on cheap bikes with cheap wheels, i never expect people to have them
but with full load on a bike i can't disconnect a brake and get 'home' (italian alps) hence the spokes
for commuting spokes are clearly not needed
in forest touring i carry matches, pot (survival equipment..think hiker 10 things..compass, knife) so on
the spoke wrench is usually to put the new spoke in or true it after one goes out
chapstick....i carry a first aid kit with 3-1 antibiotic ointment..vaseline base...nice catch
i do...OVER prepare i'm ok with that.(psst..this is fun!)
tireboot ....yep want those
i do prefer the heavier garbage bags to make a longer term shelter...i'll agree to disagree but i see your point for more civilized areas i'd carry thin and thick grade bags
for pannier repair i carry needle, thread, hot glue and tape , usually also in first aid, dental floss, in survival fireline fishing line, in general paracord
for commuting i'm normally (2 powerlinks (chaintool), 2 tubes(tire levers), 1 tireliner, 4 screws (standard bottlecage), 1 tireboot, 3 wet wipes, multitool (yes aws) spoke key and a spare brake and gear cable (also a rig i hacked up that'll replace a gear or brake cable that's broken (2 knarps with some parts from 3speed adjuster barrel from a shimano nexus)