Reviews!
Let me preface this by stating that I am only first getting started in actively trying to find reviewers for my books. Waiting around for the few and far between customer reviews is a loser's game- you need reviews to increase sales, and you need sales to increase reviews.
Obligated contractually to refer to this as a Catch-22 at this point.
However, I have been fairly pleased with the results so far. Having Facebook and Goodreads groups to help bring fair readers and reviewers into the mix, so far has been a positive experience.
Anyone else have anything they're doing, other than begging, of course.