I'm in the fert in squirt side of lawncare and am trying to increase customer base by sending out mailings. We can either send out post cards like most companies in my area or a personalized proposal with their custom price explained to them. I am leaning to the personalized letter proposal mainly because it would be a hand written envelope with a first class stamp which would almost always get opened. Please any thoughts or past experiences with this would be greatly appreciated. Any pictures of possible proposal letter would be awesome as well.