on getting mail when you travel a lot

If you travel a lot, it's a good idea to get an account at a commercial mailboxes place. You can do almost the same at a Post Office, but they want to know your actual residence address. I don't think they'll rent you a post office box without having a physical address for you associated with it. You're limited by their hours of availability, though I don't have that problem since I moved from the crime ridden city (where the local Post Office was locked up after hours) to the far safer county where the local Post Office is available 24/7 -- that is, the lobby is open. There aren't any clerks there at night. But you can go in, get mail from a post office, use scales, use a self-mailing machine to buy a meter for mail and put it into the inside mail slots. You want a service that will hold your mail indefinately. The Post Office will start sending it back if you don't pick it up and haven't told them that you're out of town.