We found this awesome idea on lots of sites, but found the most simple directions over a FamilyFun.com. This is an easy way to reuse something most of us throw away weekly.
What you need:
1-gallon milk jug
Marker
Scissors
Thumbtack
Adhesive-backed Velcro dot
How to Make It:
Mark a clean 1-gallon milk jug as shown.
Cut along the lines with scissors. To make the crease lines, use a thumbtack to pierce a row of dots at 1/4-inch intervals across each side of the jug, 1 3/4 inches up from the bottom.
Fold the flaps at these dotted lines, then open them and fold them in the opposite direction along the lines (this will make the flaps easier for your kids to open and close). Fold up the box and add an adhesive-backed Velcro dot closure.
