We are planning our move to Portugal from the US and are wondering about setting up a "Virtual mailbox" or the like in order to have a stable address for the Visa application. We will be traveling around quite a bit in the first few months after we arrive, likely in an RV, and won't have a physical address for quite some time. We don't know anyone in Portugal as of yet, so can't ask a friend for the favor. I can't seem to find much online. We are using an immigration service who will be "responsible for our housing" to cover the visa rules on showing a lease, etc. so we don't need to worry about that. Any tips would be appreciated!