Camelbacks and mountain biking and it was used on every ride. Road bike and two bottles are enough for the local rides except I only have space for one bottle due to the Mini/Road morph taking the place of the other carrier. I would rather go with just one bottle than leave the Morph at home so Use the camelback on the road in the summer.

And on Talc-My spare tubes are in plastic bags that also have talcum powder in them.