It's obvious to me whether or not a hack is worth my time, just by reading the article titles. If the article relates to something I want or do, I read it, then decide if it's right for me. For instance, I'm not about to give up coffee, but on the other hand, I now have a great home media center that gets a lot of use.

You're only wasting your time here if you don't like experimenting. Even if a hack doesn't work out for you, you usually still learn something.