Not entirely sure where this post should go ... but joints do wear and move when doing weights (so there :P)

Just wondering if anyone has come across something to help joints move around easier. I remember seeing something about oils somewhere.

When doing punches, my right elbow clicks slightly when extending. I also get slight click when getting up after being sat down with my knees folded (ya get what I mean) ... and finally, my ankles (in particular, my right) click when making rapid movement (so changing gear can sound painful).
... all of the above have never caused pain, but I'm sure if I keep it up something will have to wear at some point.