5. Remember The Numbers Game

Mailing out 100 cards is probably not going to generate a lot of results. Even if you get a call (or don’t), 100 cards is not enough data to determine whether a campaign is successful or not—the sample size is just too small. Mailing a minimum of 1,500 cards will give you a good baseline to see how the mailing performed and what changes (if any) you need to make before ramping up the campaign.