I've written a lot of posts over the years about how to use direct mail in your cleaning business. One of the first articles on direct mail was all the way back in 2010! Another post talking about how much I made off one letter was a few years later. I've written a bunch of others over the years as well, and I do so because I'm a HUGE FAN of the results. Now if you have been … [Read more...] about A quick example of how direct mail can be both simple AND highly profitable