You know those "clean/dirty" magnets you can put on the dishwasher? Well, I concocted something similar to keep track of kitty litter duty for me and my husband. One wallet-sized magnetic frame + 2 printable address labels = a "his turn/her turn" magnet for the door to the garage so we know whose turn it is to scoop when we leave for work in the morning...
And here are some gratuitous Skeeter pics since she's unimpressed by the whole thing.