Place a few drops of essential oil (one pinner suggested lemongrass scent) onto the cardboard tube of your toilet paper roll to make your bathroom smell good. Not sure how well it works but it sounds like a good idea.
Measurement conversion chart and labeled measuring cup holder for your cabinets doors. (I did this and every time I opened the cabinet, the cups would SMACK the door loudly. It would do better just in a cabinet and not on the door.