1. Sell Real Estate for a few years - great overall education in finance, contracts, sales, teamwork, etc.
2. Read, re-read and keep re-reading the book of Proverbs.
3. Study a martial art from an accomplished master. You will learn how to learn.
4. Read, re-read and keep re-reading the 'Men are from Mars, Women are from Venus'. You will then understand that you aren't nuts.
Please feel free to add to my list. Serious entries only, please.
5. Pop bubble wrap.
Yes, I'm serious. I got almost nothing out of college. I've also found that even computer science majors can't do any programming unless they've had actual work experience... Everything major-germane I've actually learned was through self-study.
5. Run for public office. I learned more in 8-9 months as a candidate than I did in 4 years of college.