Sorry there's no image in my submission. But it's very simple:
I just wanna suggest to replace the Caps Lock key with a new "Lang" key
which will allow user to switch the current keyboard input language.
I'm tired of Ctrl+Shift. And besides some people have Alt+Shift - and you
never know this until you try. To my mind, it would be much more
convenient to have a separate key which switches languages.

dear Anonymous (84.160.41.39). You wrote: "I can give 100% recept, where is guarantee of copyright protection?"
This is brain work of whole humanity. Your name will be written on the back of each keyboard, if your idea really nice. ))

Так может, еще и тормоза с машин снять (чтобы в зад не въезжали, вроде тоже случается)? Дурь это с клавишей. Не хочешь - не жми.
So can, also brakes from machines to remove (that to back did not drive, like too happens)? Nonsense it with a key. You do not want - do not press.

I suggest to put functionality SAVE (documents, etc) instead of CAPSLOCK at this key. So when you make mispress you save your document only! One day you'll appreciate this functionality at its true value :) Moreover I think it might be the default property. The key might be the soft button. All of these are made with reprogram the buttons.