What are your major rules of business and money?

Do you have rules for using money? I have 5 basic rules not that I am never guilty of breaking them on how money should be used or applied.

1. Money is only good enough to make more money. A bunch of toys are nice but they take money to support and rarely make any back.

2. (Equally as important as #1) Get from under the bosses. You will never be wealthy so long as someone else can control your earnings.

3. Stay out of debt. As long as you owe someone you are in part working for them.

4. If you have to go into debt do so only when absolutely necessary and get out as quick as possible.

5. Never do business with relative and friends. It hardly ever stays totally business like, then you have to get nasty with family and friends and seem heartless, or they try to take advantage of the private relationship you have.

Like I say, at times I am guilty of breaking them, but what money rules you have and how easy are they to keep for you?