This package is immediately appealing because of the thickness of the envelope. The envelope can also include an image of the personalized notepad, a double window, or a printed teaser message. These notepads are often included with personalized labels under the reply form. This package triggers a desire for reciprocity where the donor wishes to give a gift because they have received one.
The average response lift from including a personalized notepad in a mailing is about 14%.