Spring pulled a list of everyone in her CRM who bought a home with her in the past so we know their current home address. We put together this letter to mail to everyone with a trackable phone number, provided by Spring. The total cost to mail this two-page letter was $1,268, or roughly $0.97 a letter, when mailed first class pre-sort with a real stamp on nice 70# paper printed in color. Spring can spend 10%-20% of the commission to get a deal, so if she gets one listing from this, it's a win all day at a $500,000 median home price (assuming a listing side commission of $15,000). We don't have any other stats to share with you - other than asking Spring how many emails and calls came in from the letter, or how many people mentioned it, to track the ROI on the investment.