camelback blowfish, tire levers, tube, multi tool, gloves, glass, lighter, herbs, occasionaly a gronolla bar and extra water depending on the heat and how far i intend to ride. sometimes an extra layer if i think the weather is inclamate. it kinda changes from ride to ride! sometimes i nix the camelback and i just rock the three pocket jersey and water bottles. it all depends my friend. after reading this post, however, i do think i will start carrying a form of identification. great idea beacuse you never know what might happen!
Edit: I wear a helmet. but i thought that went without saying but everybody else thought it was worth saying. so i guess i should too.