Q: Where did the original poster attend college? I enjoy teaching and your information is incorrect. Do you care about the accuracy of information? I do. The correct information is here:

"Take care (of yourself).
'Take care'
1. Good-bye and keep yourself healthy. John: I'll see you next month. Good-bye. Bob: Good-bye, John. Take care of yourself. Mary: Take care. Sue: Okay. See you later.
2. Take care of your health and get well. Mary: Don't worry. I'll get better soon. Sue: Well, take care of yourself. Bye. Jane: I'm sorry you're ill. Bob: Oh, it's nothing. Jane: Well, take care of yourself.

take care (of yourself) (spoken)
goodbye, take it easy, was nice talking with you, was nice talking to you, take care, good-bye, she said to him, take care of yourself.
Usage notes: usually said as part of ending a conversation"

That is a direct copy+paste from: http://idioms.thefreedictionary.com/Take+care
Your welcome. Education is worth it.