I have done some research on this and still can not find an answer. Perhaps some of you here may help. I have a "permanent" address in central NY, all my mail that matters (ss,insurance,ect) is delivered there, but what I would like to know is with me moving around alot, can I get my mail "on demand"?, that is, suppose I am in a campground for a week, say, not far from the local post office and I get a message (email, text or phone call) about some mail I received back in NY and I would like to address (no pun intended) what ever the letter is about. I could have a family member overnight it to where I am presently at or is there another way without the inconvenience my family member would/might go through? I know this may sound like a dumb question, but I never gave this much thought. I appreciate all answers/suggestion.