Shiftkeys
I've always felt I don't use my right shift key enough, so I wrote up this little game to train myself to use the shift key opposite the letter you are pressing.
I'm not saying this should be a hard and fast rule for touch typing;
there are lots of exceptions. For instance, if you are already holding
the shift key down and and can reach the next letter easily, or for
middle keys like T, G, and B where the most comfortable shift
key will probably be different for everyone.
So this game is overcompensating a bit. After playing it a couple
times though, I've become a lot more comfortable typing left hand
symbols and some keys like Z, X, and C which are awkward with
the left shift.
I hope you find it useful!