On my two main bikes, I run tubeless tires with sealant, and I carry a tubeless tire plug kit...And I still carry 2x spare tubes and a patch kit, along with CO2 and a pump. Depending on the number of patches in the kit, I reckon that I can deal with over ten punctures in a ride. (Since I went tubeless, I've twice had to insert a tube into a tire -- that's over four years and probably 20,000+ miles on those bikes.)