Comailing is the process of merging catalogs that have already been bound into one mail stream. Cobinding occurs during the bindery process as the catalogs are being bound so that catalogs sharing the same trim size can be comingled into the same mail stream.

A consumer catalog company typically mails to its housefile 11 times a year, while a business-to-business cataloger mails on average 15 times to its customers. Does that sound like awful lot of mailings to you? If so, your business might be able to benefit from an increase in the number of drops to your housefile.