If I had the budget, I would actually do something more creative that stands out.

For example, during Halloween, buy 100-200 smallest pumpkins you can find - they will not cost you a lot. Then buy/print very small but nice cards where you would wish local businesses a successful upcoming holiday season. Along with those wishes, you can mention that if they don't have the online presence in your area yet, they might be missing on some of their sales - BAM! - pitch your development, marketing, hosting solutions.

You can either deliver it yourself from shop to shop (clothing, boutiques) or pay to have someone else do it. The best part is that it looks like a cool gift delivery rather than a flyer.

A local real estate agent in my area did a very similar thing (thanking the neighborhood for their "trust") and it was very effective.

Best,