Congrats on your long ride. Haven't had to deal with rain yet and you'll be my inspiration during my first soaker. Cycling and overcoming challenges -- an awesome way to live!

I drink chocolate milk after my rides - the protien and carb mix is suppose to help recovery from the ride. During my only long ride I used the energy gel (Cliff shot) and I could tell a difference. Was a 36-mile ride and with the hills and horrible head wind (and my 35-lb bike!) it took me four hours. The gel (I had two over the course of the ride) really kept me going. SInce they're small and lite I carry one with me most of the time but haven't really needed one if my ride is only an hour or so. (Twenty miles with rain and cooler temps would definitly qualify as a ride deserving some carb input during the ride!)

Hope your next ride is a dry one!