The Postal Service has a little known service where you can get an email telling you what mail you're going to get that day. It's free and seems like a nice service. However, I find it frustrating. Mail inevitably shows up on that thing that does not arrive at my mail box. One letter from my health insurance appeared yesterday but no such thing was in my mail. Still, there's a chance it'll show up today or tomorrow. I can't figure it out.
I do know we seem to have a different mail carrier then we used to have and this one misdelivers a lot of mail. So, the service? A dubious value.