12 Tips for Bulking Up Your Offer

For one of its mailings, Covenant House shows a picture of a bed in a lift note to show donors what their donation provides for a child.

Rule No. 7: Package it to shine
Don't hide your offer inside. And don't forget to repeat it often. Use the P.S. (it's one of the most-read parts of a letter, Gaffny said). Use images to dramatize your point.