Ask HN:Where do you find good startup ideas?

Just curios about how some of you personally come up with good startup ideas. Many people (including pg) say that the best way to come up with solutions to your own problems. Although many good startups have come out of that, I find that I just don't have enough problems in my own life that pass all the usual tests of feasibility(big enough market, too much competition, passion, technical feasibility, etc). Where do you find good ideas?