Self Employed???

I'm in the same boat so I'll be watching the thread too. After 30 + years of working for others I left a very good paying job last year for the same reasons. Thinking now of opening a business but still undecided on what and exactly where.
Points I've picked up:
1) If you are trying to make money avoid a business that is also your hobby.
2) Research, research, research the business you want to do and the location.
3) Do not expect to make money the first year - or two, depending on how you have
to finance it.
4) Something I learned recently - if you have a 401K or IRA, you can use that money,
without penalty to finance a business. These accounts currently own business stocks
so you basicly use the money to buy the stock in your own company and your company
becomes your 401K.