How do you store third party libraries in your source control?

Question

How do you store third party libraries that you use in your project in your source control?

When would you store binaries in your source control?

When would

Answer 1

My experience has been to create a "lib" folder and keep all 3rd party binaries in there. I will create a totally separate tree for the Source Code to these third parties if it is available.

Some places where this might be different is if you are using an open source vs. a retail 3rd party, with open source solutions I tend to just include the code in my projects and not check-in the binaries.