Gideon loves to play "Boo!", so I found the perfect place to do that: a box fort!
He's useless at designing/building, but once it's finished, he'll spend a good long time looking through all the holes to try to find me. He especially likes the reed shade on top; its high visibility and high sun blocking abilities are perfect for peeking through!
Each box (which is a top and bottom pair) cost me a quarter, making the whole project total in at $1.75. For older kids, I might double or triple that to really give them a good building set. I plan to buy more boxes and invite the older cousins over sometime next week to see what they can do.