I always have with me, in different dry bags
Bag #1
Chain tool
Crank pre-load plastic tool
Puncture kit
Glueless patches
Weldite tubeless tyre repair kit
Cable ties
Toothpaste tubes cut in half (work well for tyre boots)
Tyre levers
Powerlinks
Couple of wet wipes – go through a dog turd at speed once and you’ll understand
Spare gear cable, spare tyre valve with plastic tool to unscrew
Bag #2
At least 1 spare inner tube, 2 if I’m out somewhere especially rocky (took 2 up snowdon)
Bag#3
Fodder
I always have my multitool and pump (lezyne mini track thing) loose in my camelsack
Looks like an awful lot like that but it doesn’t add up to much. Although I’m hopefully getting a bike with bottle cage mounts soon and am going to try just going out with a bottle and multitool for local rides. I bet it’ll feel amazing not having a pack on.