I know nothing beats carrying a spare and jack, but I also hate carrying that extra weight. Yeah, I know, it's not all that much but I still don't like it, along with the room it takes. So I carry a plug kit, pair of pliers to pull out a nail or whatever, a razor, and a bicycle tire pump. It takes a bit but I've pumped up car tires with bicycle pump.

I have a full size spare in garage and would throw it in trunk if taking a trip.