on long rides I wear a Camelbak and I carry everything in it. I don't really care what people think - I live alone and have no one to sag for me so if I don't carry it and need it - I'm out of luck. Also, with our heat here in NM, my 100 oz camelback can be pretty light by the time I get home. I also carry my extra water bottles (full) there in case I "can't" get to a convenience store for some reason during the ride. everything=spare tube, spare co2 cartridges, cell phone, food, extra electrolyte packs, tea bags, tire levers, leatherman, garage door opener, 2 full extra water bottles, empty baggies (for trash), bandaids.