Don't you just hate going to the gym and leaving something at home? I left my workout shoes at home. I was planning on running after a bike workout. I skipped it because I was using my dress shoes during my ride. That was a little strange, but I have tried going without shoes and it seems too uncomfortable. I rode the stationary bike for a total of 70 minutes. The distance was 20.5 miles. I did interval workouts. I can read a book/magazine for a good amount of time, until I start pushing myself to the next level.