Along with the basics for fuel, tire changing and ID, I carry a baggie with some various sized bandaids, including some really big ones, some antiseptic wipes, a few ibuprofin, and a papertowel.

I was with a friend when she crashed, and we used just about everything in my little baggie. Fortunately, she was not seriously hurt, and it was not necessary to call an ambulance or anything, but it sure was nice to be able to bandage up that road rash. I scraped my leg one time on a ride, and the rest of the ride was much more enjoyable since I was able to put something on the cut and not have blood running down my leg and messing up my cute Sock Guy socks.