Have your money come into your business accout (what do you mean you don't have one?).
That way all ligitimate expences can be removed from the dollars the tax man gets to see you bringing home.
If you havn't already, read the "Rich Dad, Poor Dad" series of books the first 3 (Rich dad poor dad, Cashflow quadrant and The ultimate investor) are probably a must if you want to have some chance of creating some serious wealth.