I am also a big fan of "recovery rides," if only because I commute so I'm going to be riding every day. There are commutes where I work up a veritable lather; but if it's after a long day... then it's an early start and a low gear. I let the body dictate, although sometimes I'll be cruising and realize that I really could and should kick it up a bit. I am *strongest* after restful days. (Okay, I'm chomping at the bit!)