Let me expand on my comment from the Hacker News thread.

I went to the July workshop. I think it was probably the most useful week of my life in terms of exposure to things I could be doing to be more productive and effective. Since then, I've mainly been trying to incorporate the low-hanging fruit---the obviously good simple ideas---into my life. Some examples:

• At work, I realized I wasn't doing anywhere near enough planning. My employees were spending time on the wrong things because I hadn't planned things out in enough detail to make it clear what was the most important thing to do next. I fixed this immediately after the camp.
• Again at work, I now document most discussions as they happen. It slows down the discussion a bit, but it's a net win because next time you can just have the delta of the discussion and avoid rehashing things.
• Val explained to me how he changed his diet in order to decouple the relationship between his energy levels and when he last ate. I hadn't actually realized such a thing was possible. It also works for me.
• I realized that it's a waste of time to learn things/watch video lectures and not put what I want to remember into anki. I make the cards while I watch the lectures, and have trained myself to review them on my phone when waiting in lines, walking down the street etc.
• I'm training myself to no longer think things like "I should go to the gym tomorrow." Instead I decide to go at X o'clock and set an alarm on my phone to remind me. (I apparently haven't got this one completely down yet, because yesterday I thought "I should go to the gym tomorrow" and didn't catch myself: it's now 11pm and I never went.)

I feel like I'm still a beginner at instrumental rationality and have an enormous amount to work on (I haven't even started trying to adopt most of the actual curriculum!). Since attending, I've been getting considerably more work done: my brother, who is also my business partner, has noticed too.

When I got back I was super busy and have been really bad at staying in touch with the instructors and other attendees, but there are a few people I met at the camp who I would really like to have more contact with.