What do you think about a business plan for the next 3 years?

[slimbob]

What do you think about setting a goal 3 years from now and making a businessplan for this goal including (baby)steps with a date?

The goal is making a specific amount of money.

Do you know sites where I can look for information about making a businessplan for such a goal?

Advantage: I am more focused

Disadvantage: Its frustrating/depressing when I am behind.

All hints are highly appreciated