One of the things you need to remember when marketing with Craigslist is that more is not necesarilly better. If ever there’s a need for the 80/20 rule, it’s with Craigslist. There is no need to try to post in every city, when maybe 15 or 20 cities generate 80% of the traffic. There is a pdf in the Craigslist Marketer Pro files that give you a list which I would pare down even further.

Here’s Craigslist Marketer Pro