A little sore -- that's OK

So one day after my first post-marathon workout, and I've got sore hamstrings and calves. A little, but not too much. (FYI, I don't expect to post this often going forward, but today I've got time.) I also have a bit of a not-so-good twinge in my right knee, which started after I drove home from the track yesterday. It doesn't seem like anything serious, so I'm still planning on my next training run for Sunday, or Monday if necessary. A tempo-ish run is sounding good right now.