Microwave Popcorn: Home made, cheap and easy - Instructables

1/4 cup of popping corn (generally $0.99 for a pound bag. This is enough to make at least 50 bags of microwave corn)
1 Teaspoon extra virgin olive oil
To taste - popcorn salt (it has finer granules than table salt with the same taste)

And the following tools:

A stapler
A teaspoon
A measuring cup
A brown paper bag
and
A microwave

Microwave Popcorn: Home made, cheap and easy - Instructables