I finally got around to cleaning those itsy-bitsy little sensors. Had
trouble locating those little sponge tipped swab thingeys, though. I
looked at electronic shops, craft supplies, etc. While accompanying my
wife while she was shopping for cosmetics I noticed some sponge tipped
thingeys used for applying mascara or some damned thing. They were cheap
and they worked great. Even found a use for them while cleaning a gun.