Just a couple of thoughts echoing what JayBet said...
Incorporate. You can usually do it yourself and it offers great protections from lawsuits, bad debts, and the like.
Pay yourself minimally and declare dividends when you need some money. You avoid payroll taxes this way and if you're self employed, you will be paying both sides of the payroll tax. Dividends can be declared whenever and should not be in a set weekly amount because that looks like you are trying to avoid payroll taxes (which, of course you are).
30% to 40% of all monies coming to the corporation get stuck into an interest bearing savings account immediately. If you can manage 50%, that's better. You will be able to avoid paying quarterly tax estimates for the first business year, but Uncle Sam will definitely look forward to those payments beginning in year two. As JayBet noted, getting socked with a tax burden at the end of the year can be more than a kick in the teeth. It can put you out of business and you will still owe the money. Uncle is pretty one-way about things like that. And an added benefit is that you will likely get a refund at the end of the first several years.
Start keeping really good expense records. Anything you purchase for the company is deductible, but you need to have a record of it. This includes all mileage on your personal vehicle or, if you have a dedicated business vehicle, all mileage. I don't know what the current rate per mile is, but it can make a substantial impact on your wallet.
If you have an extra room in your house, make it your office. Put a lock on the door and use it only for business. Figure out what percentage of your total house square footage is contained within the walls of that room and that percentage can apply to the total monthly cost of maintaining your home. You will deduct that amount from gross receipts at tax time.
The IRS is pretty flexible about how long you have to show a profit. You may be able to run a break-even business that pays all your bills but has limited tax liabilities. And you may be able to run this business for several years before anyone questions you about profitability.
Finally, don't take anything anyone tells you for gospel--especially some Ranger on a gun-nut thread. Do your research. Confirm everything with a CPA. And that's probably the most important advice I can give you: get a good CPA. Mine saved me thousands over the years (and probably some jail time, too).
Here's my disclaimer: Nothing in the above post is to be construed as legal, financial, tax, or moral advice. Any decisions about your actions and activities are your decisions alone and should NEVER be based on suggestions from members of a gun forum. Everything detailed in the above post may well be total BS and is offered for entertainment value only.
That said, good luck and keep us posted as things progress. And MEET WITH A GOOD CPA OR TAX ATTORNEY. That will be money well spent.
Crusader Rabbit