Cereal boxes turned mail sorters (covered in wrapping paper) and attached to the wall with velcro! I thought this would be neat in the classroom - organize different kinds of paper, handouts, etc. Or use as mailboxes for the parents.
Plan the weekly menu in advance and get all your groceries in one swift shopping trip. Magnetic labels make meals simple -- just mix & match dishes on the calendar and keep inventory on an organized board. Print these labels on magnet cooking tips guide
Recycle a wipes container into a portable plastic grocery bag container. Great idea for the car or beach bag. DIY tutorial on how to make it (including instructions on how to fold the plastic grocery bags) from Infarrantly Creative.