And this is why I LOVE open face keyboards. The gutters are just a hair and dust trap that gets more and more disgusting each day.
However, that only works on switches that could give a crap about contamination, like cherry switches. I wouldn't go open face with an alps board...
I don't own cats, but I do own dogs. I remember bringing a lint roller to work so an OCD coworker could dehair me everyday. She would hold her hand out as soon as she saw me, which was both embarrassing and helpful.