Following up on the knee supports mentioned earlier. I've bought one for the right knee and have been using it for the past week or so. Its the adjustable type, so you can have it as tight/loose as you want.
Its a great invention really. Good support, no pain, just some discomfirt while in seiza.
I would recommend it to everyone who wants to keep their original knees in a decade or so.
Btw, does anyone here have toe injuries?