Today's post is super easy! In my house, not sure about yours, but clothes, toys, random everything ends up on the wrong floor. I put matching baskets at the top of the stairs and another at the bottom of the stairs. When random items need to be put back upstairs, they go in the basket and same for the upstairs to go downstairs. It works perfectly for me. Maybe your not as lazy as I am, and run these items to its correct location right away... if your that person, please tell me where you get your energy!
Disclaimer: Due to some past exepereice I don't recommend hard or metal bins! Lets just say I learned the hard way when my then 2.5 year old did a tumble down the stairs face first into the metal basket. I felt like the worst mom EVER as I cleaned blood off my child's face, clothes and my carpet.