4. Postage. Testing down in paper and potentially cutting pages also will provide opportunities for postage savings.
In addition to a lighter book, there are other ways to save postage by making sure you’re sorting properly and that you have the longest ZIP strings possible. If you have a catalog drop with a lot of versions or testing, be sure you can bring these back together for the sort, or that you bind by demographic to maximize discounts. Also, make sure you’re using a mailing house or printer that can get you deep into the postal stream. I’ve seen many catalogers switch printers to reduce costs, only to lose the savings in increased postage because the mailer couldn’t get deep enough into the postal stream or wasn’t advanced enough in sorting and commingling techniques.