Out of the huge saturation mailing lists are a smaller number of people who won't send your offer from the mailbox to the trash. 

Why?  They're already interested in your product and will welcome the opportunity for a special offer. 

So, how and where do you find these people?

A great place to start is your own customer list. 

Who are they? And, most importantly, what do they buy from you?
Why? When? And, How?

Once a computer listing of your own customers is created, including their addresses, buying habits and other pertinent data, MMP can determine how to make the right offer at the right time to the right people who are already interested in buying your product. 

Thus, eliminating much of the waste in a 'resident' or 'occupant' mailing.

Now, you ask...

"Why spend time and money selling to people who are already my customers?"

Because the easiest place to generate additional business is from present customers.

But, more important than this, if you don't look after the people who are buying from you now and supplying your livelihood, the competition will.