my usual carry is: 1 tube, 1 quick patch kit. 1 CO2 inflator w/ 2 cartridges. basic folding tool (allen keys, and a couple screwdriver heads), and tire levers. If I'm on a bike that's recently been overhauled I carry a few extra tools with me for fine adjustments of derailleurs and such. If I'm solo for a longer ride I may take a second tube.

phone, keys, ccard, ID, insurance card, a little cash go in my jersey pockets. If I get thrown from the bike, especially solo, I want to be sure I have my ID and phone on my person.