They say the knees are the first to go...or is it the mind? I forget. My left knee has always hurt a little since I suffered a sports injury in high school. After posting about it here on TB, I was advised to try Glucosamine (Thanks.) Well, i finally went to Walgreens and bought some of the stuff, but it doesn't say how often I should take it. Once a day? Twice? After every meal? I don't want to waste capsules by ingesting more than my body can absorb. Ideas? Thanks.