Cat, you may want to try a child's paintbrush. It doesn't keep the catfur out of the keyboard, but you can use it to brush the fur out once it's there. You may have noticed the paintbrushes in my cup-for-keeping-pens-in, on my desk .. now you know.

Works well in the interior of mice, too, and anywhere else you need something small and harmless-to-electrical-components that can clean things.

(Note: primary diary on my homepage. Not a lot of techstuff there right now, but hey. Not doing much techstuff right now - other than reading the Knuth set that Dancer got as a going-away present from Schoolsnet.)