I just cleaned my shower screen with my worn (last night) PJ bottoms because the material of it brings it up clean and streak free.
I've also been known to wipe down the mirrors with a worn sock or DH's pants and often wipe DDs nose with her 'dirty' vest if I've just taken it off.
Does anyone else do this or am I just really slovenly! Have outed myself as a dirty cow now, haven't I? 