How do you file those one-of-a-kind papers?

Question:When filing papers in your home, every so often, you come to that one paper that doesn't fit into any file category, but it's an important paper you don't want to toss, and it's the only paper that will ever fit into that category. How do you file those types of papers so you remember where you put them, but are still filed away?

Answers:
"one of a kind miscellaneous file". whenever you have something that falls under that heading- file it there.