Condiments and Spices
As in: The cumin that falls out each time you reach for the olive oil.
Use a lazy Susan. Consider a two-tier one with a top tray that can hold bottles of ketchup or vinegar.
Transfer spices to easily stackable jars. Laurent Gras, chef at the Chicago restaurant L2O, transfers them from various-size jars Oxo Good Grips Pop Containers ($40 for a set of three, crateandbarrel.com) to clear and marks each with a handheld labeler.