Thanks for the heads up.
My mail carrier thinks I'm nuts. I sit just inside the front door, waiting for packages either from PIF, vendors or nice folks like you.
It's weird. I'm blind, postal carrier is deaf. I can't see his sign language, he can't speak. When I have to sign for a package (from China for instance) it gets pretty comedic. I can sign "I am blind," to which he always replies.... "Deeeef..."
This is a great life, ain't it?