Let me think:
Multi tool with chain breaker. I tried to get a tool without the breaker, and wouldn't you know I missed the breaker pretty quickly, so I replaced the tool for one with a chain breaker. Of course, now I haven't needed it. Sigh.
Quick link.
$20
TPU tube
Patch kit
3 co2 cartridges and inflator
Tire levers
Disposable gloves
Hand cleaner wipe
My theory is that I'll swap tubes for the first flat. Then if I get another one, patch whichever one is in better shape, and had for home, because that ride is cursed.