I take a glass of water to bed everynight and smoetimes (most times, lol) I don't bring the cup back down in the morning. I forget or I have the baby, our toddler, a bottle, a blankie etc in my arms so I leave it. Lastnight he had our son ask me where all of our glasses are and why you don't bring them back to the kitchen Mommy? Nice eh? lol It makes him absolutely crazy...makes me giggle, but I really should pick up after myself.