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

I don't put 3rd party source or binaries in SC. My rationale was that I would not have to update SC just to update the libraries. I am starting to regret this though. When I have had to recreate the project I find myself running around looking for the lib sources instead of just syncing to SC.