What I’ve done so far:

Put it on my business cards.
Put it on my invoices.
Paying for Google AdWords (only five clicks in a month).
Handed out informational fliers (40 hits out of about 400 fliers).

I need more. If people find my website, they’ll see how much I know and are more likely to buy my service.

Any ideas? I need a cheap solution. I’m thinking about trying to barter my service for advertisement somewhere in my town as an option. It could save me a ton of money, but may not get me many visits or phone calls.