My personal opinion is that there is no knowledge more relevant and important than self-knowledge. To me it's one of the fundamental experiences of the human condition and I would find it more pitiable if someone had no self-knowledge than if they were illiterate for example (or otherwise lacking in knowledge of something that most of today's Western society knows).
For me the quest for self-knowledge has always been paramount.
1) So I selected "yes" it's important
2) for the best way, the poll actually didn't offer any of my preferred methods. I think the truly best, not to mention easiest, way is through good old-fashioned introspection, and carefully exploring your feelings and motivation. I think a very good tool for this is to write your thoughts out in a journal/blog and/or to discuss them carefully with a trusted friend. These three ways are by far the ones I employ the most and I'm very pleased with the results. It's also useful to engage in other creative pursuits like writing, painting, poetry, music, etc. and also probably very useful to engage in other hobbies that aren't traditionally associated with such things (I think sports could be very helpful for example).
I know that for my part if I'm going to engage in pure introspection without discussing it with someone or writing about it, my favourite way is to take a long walk by myself, a close second is to take a hot bath, and a third is, oddly enough, to do dishes. I'm very introspective when I wash dishes for some reason and I find it very relaxing.
For the sake of this poll I actually selected all three options. The second option, Jung's test etc. is the one I've engaged in the most and I do find personality tests and other such things to be very fascinating and often very insightful. Though, for the most part, they've only ever told me things I pretty knew already. Nevertheless, I enjoy them immensely and they do stimulate my thinking about the subjects so I still find them useful.
I also selected counseling because while I've never been to a therapist myself and while I don't feel like I do have anything major or chronic for which I might need counseling, I still think that with the right therapist it would be very useful and enjoyable. I'm also a firm believer that counseling is very good for people.
Finally, I wasn't going to select the non-scientific approaches like astrology because I'm fairly skeptical about such things. In the end I did elect to select it however because I think the fact that one may or may not participate is illuminating about oneself in the first place. For example I almost always read my horoscope if I'm reading a magazine or paper that has it in it (I don't actively seek it out though), I've also done tarot cards with friends, and last month I
tried to go to a psychic/palm reader on a whim (I was passing a place that did it), but unfortunately it was closed.
Anyway, point is I think those things are fun, and I'm just about open-minded enough to believe that there's a very small chance there's
something to them. For the most part though I don't believe them at all, and would never actually base any decisions or actions on such things. What I think my willingness to participate casually says about myself, however, is that I'm a very open-minded, spiritual person, who enjoys novelty. So in that way I think they do tell me something about myself.
3) I said I know a lot about all those techniques. It's a relative thing of course, but I'm pretty well-informed about such things as a result of my degree in psychology as well as my general interest and active pursuit of knowledge about in the field.
4) I am interested in knowing more. I'm interested in knowing more about almost anything that interests me even a little, and this interests me very much, so I doubt I'll ever know all I want to know about it.
5) for the last question I said that I was open to all techniques for learning more, because I think all could be very useful!
Great poll/thread, Old Bob! Thanks

Take care all and have an awesome day,
Kevin