I picked up a new sort of kit the other week from the local bike shop. Instead of the reamer, mushrooms, glue and knife, it was a little plastic thing that you screw into the tyre and snap off flush. I like it as it looks to be much quicker than the other method, and the last place that I needed to do a repair was on the peripherique, and it felt like I was taking my life in my hands with every extra second I was crouching there next to the line of traffic.
Possibly it's more of a get you home solution than a permanent one, but I'm happier carrying that than the other kit, especially as I face the thought of doing it in the pitch black and freezing cold if needed in the next few months.