I&#x27;m using a kinesis keyboard with the &quot;savant&quot; pedal, which can be configured to do anything you need.<p>I used it for a while as &quot;shift&quot;, then ESC and control, then I stopped. Not so much because it wasn&#x27;t efficient (I still think it&#x27;s better than using caps-lock, not so much for other keys), but because it enforced a more rigid posture when sitting. I like to move the feet a lot, and change the sitting position. Instinctively I tended to stay more rigid instead of moving the pedal.<p>But YMMV. If you tend to abuse shift to capitalize words, a pedal is worth considering.<p>I also just used a mouse attached to a piece of cardboard, controlled with the foot just by sliding it on the ground. Just too hard to control fine movement. I briefly tested just a mouse with the bare foot, but the foot joint just doesn&#x27;t has the versatility of the wrist. It was also annoying that I had to use a keyboard combo to perform the clicking (since I used the toes to hold it).<p>Trying costs nothing though, so have fun and try for yourself. Pick a crappy keyboard, and construct a lever with a V shaped piece of cardboard. Position the pin on the back on the key that you want to &quot;try&quot;. It won&#x27;t be as rigid or comfortable as a pedal (you cannot &quot;rest&quot; on it), but you can get a feel of how it works. I let several of my colleagues try the pedal since I don&#x27;t use it anymore, but it&#x27;s not something that is easily appreciated.<p>It certainly requires some training to get used to, especially to generate control sequences. I would advice to try one before buying for this reason.