Had a puncture t'other day which I managed to repair after pushing bike a mile home and got thorn out of tyre. refitted and all was fine. Went back to bike half hour later and it was bloody flat again. When I restripped (the wheel !), no air would stay in the tube and on inspection found a nice bullet hole on inside of tube directly in line with a "spoke hole". The hole wasn't exposed, covered by OE rubber strip(thought tube might be forcing into double wheel wall). I've stuck a tube patch over the offending hole. Question is, is there something better I should be using that I can stick in the wheel to protect the tube next time I whip the tyre off ?