[yogo]

I don't think your budget is big enough for a successful AdWords campaign. In fact, I think at $2 max a day you're probably just throwing that money away. My guess (I don't have much details here) would be that you're looking at 1 or 2 clicks a day and that's pure luck if any of them convert. Given that constraint I would avoid AdWords altogether at this stage. I'd bet that a cheap, but quality, mailing list containing businesses that might need your product would produce a better return.