Tap test: The process of tapping the ends and the top and bottom of a stuffed, sealed window envelope to make sure the name and address appear through the window.
Teaser: A phrase, or an image, or a phrase and an image, on a carrier envelope that arouses curiosity and motivates the recipient to open the envelope. Also called an envelope teaser.
Test mailing: The first appeal that a non-profit organization mails to potential donors, to discover if direct mail is a cost-effective way for the organization to acquire donors and raise funds.
Throwaway:A promotional piece, usually printed on inexpensive stock, intended for widespread, free distribution to houses, businesses or to passersby.
Tip On: An item, such as a promotional piece or reply card, glued to a printed piece.
Token: A device that involves the reader in some way, often consisting of a perforated label that the reader removes from a sheet and sticks to a designated place on the order card, signifying a desire to buy.