Career/finance
http://www.mrmoneymustache.com fixed what I was doing with personal finance. In particular, not saving for retirement consistent with what my goals are on reflection. The best part is that what he tells you to do for investing is really easy and involves almost no choice, which meant I got started immediately while reading more about other life changes. He also drills into you that the naive cost/benefit calculation for outsourcing small home repairs done by a lot of us geeks misses less obvious costs of outsourcing and under-counts the benefit of learning skills, which was a big update for me.
I took part in a recent discussion in the current Open Thread about how instrumental rationality is under-emphasized on this website. I've heard other people say similar things, and I am inclined to agree. Someone suggested that there should be a "Instrumental Rationality Books" thread, similar to the "best textbooks on every subject" thread. I thought this sounded like a good idea.
The title is "resources" because in addition to books, you can post self-help websites, online videos, whatever.
The decorum for this thread will be as follows:
I think depending on how this thread goes, in a few days I might make a meta post on this subject in an attempt to inspire discussion on how the LessWrong community can work together to attempt to reach some sort of a consensus on what the best instrumental rationality methods and resources might be. lukeprog has already done great work in his The Science of Winning at Life sequence, but his reviews are uber-conservative and only mention resources with lots of scientific and academic backing. I think this leaves out a lot of really good stuff, and I think that we should be able to draw distinctions between stuff that isn't necessarily drawing on science but is reasonable, rational, and helps a lot of people, and The Secret.
But I thought we should get the ball rolling a little before we have that conversation. In the meantime, if you have a meta comment, you can just go ahead and post it as a reply to the top-level post.