Work harder on yourself than you do on your startup (opens in new tab)

+1 for exercising.

I've lost 20lbs, and I have never felt more effective.

Self-improvement makes me sick.

Off-topic, but please fix the social button behavior on the iPad. The stay glued to the top and obscure the text, making it difficult to read

I would recommend some kind of "zen" type of meditation as well. It doesn't have to be the religious type (i.e. the lowercase Z suffices) but learning to stop thinking and accept the present moment for what it is without preconcieved notions can be incredibly useful for spotting assumptions when one is thinking and, consequently, for improving the quality of ones thoughts. It also helps with planning for the future and analyzing the past. Bad assumptions seem to be at the root of most stupidity and zen style meditation is excellent for learning to cope with them.

Funnily enough, I listened to Jeff Atkwood from Stack Overflow yesterday who made the same point implicitly - he and Joel Spolsky had a big community around themselves when they created Stack Overflow and got the initial traction that way.

So that's +2 then ;)

I have been talking about the importance of exercise with joel. You need to be able to operate at peak both mentally and physically if you want to have serious result in your startup.