Reading the Town Mouse blog today reminded me of my own, usually impatient, efforts to clean my laptop keyboard. Once, approaching the task with enthusiasm and a brand new yellow duster, I managed to remove half-a-dozen keys at a stroke. I never discovered a way to refit them but fitting a replacement keyboard was easy.
My present problem is much more irritating because this laptop is less than two years old and the problem started several months ago (but outside the guarantee period, naturally). Quite why T I O L and N should have been the first to wear away I don’t know but wouldn’t you think they could make a keyboard that didn’t do this? I never saw this problem after many years of use on any of the typewriters that I owned, and they all got far more pounding than any computer keyboard.