We have stairs in our house and I keep a basket at the top, EVERYTIME I go up or down the stairs I take something back up (or bring the basket down) and put the items where they belong. It NEVER takes me more than a minute each trip, but saves me at LEAST a half hour daily of putting little things back at the end of the day. Dirty socks, my daughters hair bows, small toys, etc.
Heidi