Cardboard Box Solar Oven

Okay, let's say power has gone out and you need to cook some food. You are not prepared so you do not have any wood, charcoal or propane tanks on hand.

What are you going to do?

Well, grab two cardboard boxes, one of them small enough to just fit inside the other one.

Line the inside of the bigger box with aluminum foil, reflective (shiny) side out.

Paint the inside of the smaller box with flat black spray paint.

Place the smaller box inside, then place your food inside the smaller box and cover the smaller box with a piece of plexi-glass. Using the foiled flaps of the larger box to reflect the sunlight.

Make sure it is in a position to receive direct sunlight and before you know it, there will be enough heat to bake a casserole, meatloaf, a loaf of bread or even boil water.

And you thought cardboard boxes were only good for making forts!