If you cannot function without coffee in your life, then I have an amazingly simple and powerful air freshener instructable for you. I'm not an avid coffee consumer like the Starbucks junkies out there. To be honest I prefer the $2 cup of coffee you get at the gas station over any of the designer blends you find in coffee houses. One thing I do like about Starbucks and other coffee places is the smell of coffee and how it just fills the air. So I came up with a way to enjoy the smell of coffee whenever I get into my car.
You will need:
1) A pair of old socks (One sock would work too but make sure you pick a pair without any holes in them)
2) A bag of your favorite coffee grounds or beans (I used coffee grounds but coffee beans would be the better choice because you would have no worry about leaking and they can smell fresh longer.)
3) A tall glass (optional but makes things easier)