One of the most powerful parts about engaging your customers' feedback is that they will let you know the best ways to communicate with them and sell to them. Your customers will, when asked, be more than open about how they prefer to be contacted as well as their preferred frequency of communication.

Marketing departments are constantly trying to figure out the best method of communication. Whether it is email, phone, direct mail, blog, podcast, social network or a variety of other methods, simply asking your customers their preferred method of communication will streamline your process, make your communication more effective and exceed your customers' expectations.

And just like you would do for all feedback, aggregate the responses in order to quantify your most popular choices. You'll likely find that two or three methods will make up more than 90 percent of all responses.

In addition to the method of communication, frequency is another area in which your customers will be more than happy to give you guidance. This is a perfect question for email or an online survey using a tool such as SurveyMonkey.

We were recently in the midst of crafting a policy review program but were unsure how often our customers were interested in reviewing their life insurance coverage. A simple email out to our customers not only gave us the answer we were looking for, but surprised us regarding the frequency. Without asking for feedback, we would have implemented this program with a frequency that didn't appeal to our customers.