Along the same lines here, I would say just don't make mistakes or large commitments in general that will tie you down. Don't get arrested for underage drinking

Along the same lines here, I would say just don't make mistakes or large commitments in general that will tie you down. Don't get arrested for underage drinking (or DUI), don't risk having kids, don't take stupid chances with your life or health, don't screw up your credit, don't take on lots of college loans if you can avoid it, etc. Being able to live anywhere and on almost no money will make it a lot easier. Additionally, do talk to a potential long-term partners about the entrepreneur lifestyle (and not having a high-paying job for a few years), do read as many blogs and books on entrepreneurship as you can (you won't have time once you actually start a company), do go out of your way to meet as many people as possible, and stay in touch with the smart ones. Also, TAKE PROGRAMMING CLASSES.