Free pro-tip: If you'll be using all your income to live, there is no real benefit to incorporation, just additional administration and expenses. Keeping this small of a business as a sole-proprietorship and simply claiming the income through a program such as quicktax is the easy way to go, tax-wise. If it's as small as you've explained, simply tracking revenue and expense sin excel should work, and keep supporting receipts/invoices, etc.
Expect to be over $30K in revenue in a fiscal year? Get a GST number
In fact, get a GST number anyways. This way you can write off any GST you pay for business expenses.
Keep mileage logs for any work related driving
there are 100 small tips that will add up to an optimized tax bill. I suggest, if you're serious about this, setting up a meeting with a small business accountant (I believe they're call SAIT graduates or CGAs
) They will point you in the right direction and will lilely have a whole sheet of 'small business pro-tips'