Well, I no longer have fuzzy sticky balls. The mouse sparkleth. Don't tell Jus, but I've discovered the perfect mousedegunking tool: the electric toothbrush. Yes, I did thoroughly clean the head after use, thank you.
My keyboard legend is wearing thin, and in a rather strange fashion. I use it most often for writing english prose, so I would have expected the wear pattern to follow the frequency distribution for characters in continuous English text: you know, e t a o i n s h r d l u, etc, with pretty grim wear on the rubout key too. However: my o key is completely blank, with i and n tying for second place. That's fair enough, third through sixth place in the distribution - however, my e t a and s keys are remarkably legible, though h is wearing a little, and the k and l keys are fairly badly worn. I admit that I'm a wretched typist - four fingers at most, usually, and I do need to look at the kbd even though I've been using them for umpty-um years. I've always said that if I wanted to do touch typing I'd have got a job as a secretart.
Looking at the kbd, therefore, I note that the letters suffering the greatest wear are those generally hit with my right hand, and the first couple of fingers of that to boot: the erase key generally gets done with my third finger, and that's showing no sign of wear despite my lousy typing. Is it possible that I have differentially corrosive/abrasive digits? at least one enquiring mind wishes to know...