We have a special spot on the kitchen counter where everyone can put half-filled coffee mugs that need to be reheated, water glasses to be used again later, or sippy cups that can be refilled. At the end of the day, everything that's still out goes in the dishwasher. It cuts down on kitchen clutter, and it also avoids shouts across the house of "Are you done with that coffee yet?"

Katherine Weber, 33, New York City