Sitting on the recumbent bike as I type this. Feeling a slight 'burn' in my legs already. The way my butt feels right now reminds me why I'm not a fan of bikes in general. After my 30 minutes of 'fun' its 30 minutes of weight training.
My knees feel a little sore so I'm going to the local running store for a proper shoe fitting. Ran 3 miles on the indoor track yesterday.
I will do this no matter what! (but within reason :)