I have decided to settle in HK for a few years and I'm thinking of renting out my condo in the US just to have a bit of income from the home. I can't be asking my renters to check my mail for me. Even with a USPS mailbox and a plan to return once a year, some things that come through only in snail mail need to be handled in a timely fashion.
Do credit card companies accept PO Box addresses? Even if you performed only online purchases (eg iTune cards), merchants still ask for an address. What do you fill in in those cases?
If you are also from the States, what do you do about your US address? Is "friends and family" the only solution? I'm out of clues on this one (check my user name, ha.)