I've been cavalier about riding my tubeless 29r with nothing more than a spare inner tube for too long. Most of my rides are day trips that I could walk out of if needed, but a recent flat made me add some components to my EDC when riding: valve core tool, plug kit, small multi-tool, and a better selection of patches and boots.
I'm 'on the fence' about the need and utility of carrying sealant on day-to-day rides. My road riding friends say "Got a flat, pop in a tube and keep rolling, no point in adding sealant." The rationale being that if the hole is so big that you lost all the sealant, you have bigger issues and should boot the tire and slap in a tube. Similarly, for smaller punctures, use a plug and whatever sealant remaining in the tire.
So for those of you with more experience: Do you carry sealant on routine rides** and have you needed to 'top off' after a roadside repair?
There seems to be a divide among road and mountain riders. Roadies not carrying any extra sealant and mountain bikers carrying jugs of it!
** I'm distinguishing routine day trips or S24Os from longer trips, where I know there is clear benefit from having extra to refresh the tires in case the sealant dried up etc.
If I'm sleeping out (S24 to multi week) I'll 2oz carry sealant
Regular day rides (2-16h); if I know I'll be home that night or near a town/shop that I can get some I don't carry any.