I had to say "other". My options are rather limited since I live in an apartment. I keep one box in the laundry room, which is just off of the kitchen area and the other is in my bedroom. I have been thinking of moving it into the office/guest room.... but I hate to make it more inconvenient for 18 year old Tabitha. She uses the one in the bedroom most often. She can get off of the bed, go to the bathroom, and get right back to her kitty cat dreams!