I've just changed up my ride luggage. I'm not touring/camping any more, so I've ditched the rack and panniers, and the bar bag.
In a seat pack, I carry:
Topeak Alien
A no-name mutli-tool/tyre lever combo that I bought many years ago and fills a few gaps in the Alien.
Inner tube
Puncture kit
Assorted tyre levers
Cable ties
Small end of a roll of insulating tape
And a Lezyne HP Drive on the bottle cage mount.
I did get cold the other day though when I stopped at a friend's house for an outdoors natter, and I've got a new bike coming soon so needed something for that.
Decided to get 2 Ortlieb bags - one small seat pack for the bits above, then one of their bigger ones (that falls into the rare spot of being bigger than a wedge, but not full-on bikepacking huge) that could take that stuff, and a waterproof/long sleeve top as well for the maybe-rainy days or when I know there'll be a long stop. Both bags use the same clip, so I have the choice of either bag on either bike.
How long is sir going out for?
An hour or two?
https://photos.app.goo.gl/jXfxhHH9LvvecU8c9Or all day?
https://photos.app.goo.gl/aBMQ3aq1yWFwEV1F9