If you were to log in, you'd be able to get more information on your fellow community member.
One(?) other thing I would add to the list of 'must-haves' is enough hardware to get you back home in case something breaks down. This can be as little as a spare tube and one of those All-in-One tools (you might want to have an extra cable, but there are ways to improvise around a broken cable). Being stuck 5 miles from home because your seat bolt came loose, or your chain broke is No Fun, and is easily avoidable. I generally carry a small bike repair shop in my rear rack bag, mainly because I'm paranoid, and I like helping out Folks In Need that I come across.
Another handy thing I don't bike without is the "FAPP", short for First Aid Personal Pack. It's a cheap, flat little pack that contains a number of bandages (including butterflys in case you gash yourself open), antiseptic, gauze, etc.