Apparatus, methods, media and code for routing a mail item part are provided. A receiver device may electronically receive: an indication that a first mail item part of a mail item is a check; an indication that a second mail item part of a mail item is a payment coupon; and an indication that a third mail item part of a mail item is a message. A processor device may: route the first mail item part and the second mail item part to a first destination; and route the third mail item part to a second destination that corresponds to terms in the message.

Methods and apparatus for increasing co-mailing discounts are disclosed. An example method includes determining a first number of first books associated with a first pool, the first books to be addressed for delivery within a geographic region associated with a postal discount. The example method further includes identifying a filler from a second pool to fill open pockets associated with the first pool. The filler corresponds to a first type of book associated with the second pool. The example method also includes identifying a second number of second books associated with the filler to be bundled with the first books when the first number of the first books is less than a threshold number of books for the postal discount. The first number of the first books combined with the second number of the second books is at least as great as the threshold number of books.