Use of clean controlers with less bacteria

When a lot of people share keyboard, mouse, joypad, door, etc..These get dirty and carry bacteria.

Solution?
1.keyboard can be washed with soap. It's time that you try to wash keyboard in washing machine and report here how it survived.

2.No controller options:
-webcam controling (MS Natal project)
webcam recognise your movements and interpret them
-voice controlling
sometimes it's enough if you just whistle as signal