I just started riding my bicycle again this year after having not ridden since I was in college. Back then I maintained my own bicycle and I plan to do it now also. I find that the Internet is a wonderful resource, but I have also purchased a few books to help me with items that have changed in the last thirty years.

Looking through the BF it appears there are a lot of questions about maintenance and having work done by an LBS. My question is how many 50+r's do their own maintenance? If not, why not? Are there specific tasks that you feel an inidvidual should not attempt?