Just make it more like FedEx and UPS - Instant Tracking where you can see what city its in, at every point of the way (updated every few hours). Then get every mail-order company to offer it (amazon, newegg, etc)
Other options include having a new class of mail cost for companies like Netflix and GameFly, where they charge a laddering fee per amount of mail (1000 letter, 3000 letters, etc) - may already be in place as I dk much about these things.
Force those companies (netflix/gamefly) to redesign the mailers for their machines/redesign the machines for their mailers. (reduce overhead while charging fees in the meantime)
They need to either reduce overhead or increase revenue. They've been focused on reducing overhead, I think they need to focus more on increasing revenue - branch out into other areas in the mail services field.