One good way I found to stretch the hams while seated is to put a Swiss ball behind my back against the couch. The ball supports my back, and I just move my butt in as close the ball as possible. I'm not yet able to sit straight up with the ball behind me so there is some space between the ball and my butt right now. I'm finding I'm able to move it in just a pinch each week. This is going to take some patience! Thanks for all of the tips.