Personally I receive a great deal of angst when I try to make all my hobbies productive. If I watch TV and it's not a documentary or a classic, I immediately get the feeling that I'm "wasting" my time. I don't think this is healthy, and I think many could benefit from separating their productive and unproductive time completely.
"Productive" and "unproductive" are understandably pretty relative terms. I've accepted productivity is like efficiency -- I'm going to have some waste/inefficiencies and that's okay. That doesn't stop me from trying to make value judgments in choosing what I think are better activities for myself though.
Some people liken this to "hacking oneself"; I won't abuse the term "hack" quite so much, but I do think of it as a subproblem of "finding a job you love and you won't have to work a day in your life" -- finding a hobby you enjoy that enriches you as a person.
