As a part of my children's very necessary education, Hubby and I introduced them to some of the childhood cartoons beloved through the generations, the most notable being "The Hole Idea," better known as the Portable Hole. If you have never seen this bit of storytelling genius, let me enlighten you.
I think Hubby would gladly find a portable hole to drop me in from time to time, so it's a good thing they don't actually exist. However, the idea has always fascinated me and I imagine from time to time what I would do with one. I think my current favorite use would be quick clean-up of my house. Open a good big one in the floor, shove the mess in then fold the hole neatly and put it away.