1. The money in advance.

A basic rule of business – money forward. Remember, no matter what happens, how would You not persuaded to wait, don't settle – You should get the money in advance. When You come into the store, no one will sell bread or vodka in debt. Pay the money and use on health.
There is a famous phrase, said one of the oligarchs

"Business on trust ends with blood." Therefore, separate business and everyday life. Don't be afraid to seem greedy or meanie – act according to the rules of business.
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2. Interesting idea.

Your business should be a interesting idea. Interesting not only for You personally but for others.

3. The implementation of the commitments.

Always do what you promise – depends on Your reputation and the fate of Your business. Perform the promise, even if it leads to financial losses. It is better to lose money than reputation.

4. One owner.

Any business, launched in partnership, will sooner or later lead to controversy. And then will begin serious difficulties. Begin a section of the business and there will have to be cut "live". The best way to start a business alone. If this is not possible – section is done at the initial stage. Otherwise, you can lose not only the partner, but also business and often life.

5. Paper.

All its agreements with business partners, with suppliers, with buyers sure to be documented. Do not think that "this person is so good he can't cheat". If You do not enter into documented agreements – sooner or later You will lose not only money but also business.