Mailing address / residency card

Hello Blanca,Your blog is an amazing source of information. I have a question regarding the residency card:it seems the Portugal recently introduced the citizen card for foreigners living in Portugal.1. Whether it be your first D7 residency card or second D7(renewal) residency card, it possible to get the citizen card? Do you even get the residence cards, now that the citizen card is mandatory? How long do each take to arrive in mail approximately?2. The other question that I have is, when it comes to the above 2 cards, it is possible to rent a Mailbox or Postal box at a post office and have the cards received at that address instead of a residential address? I ask this because, from what I have seen, Portuguese immigration forms always asks for a residential address instead of a mailing address. I see getting a rental in my own name is difficult and as such have found friends who are willing to rent out a room in their house, but I still prefer receiving mail at a mailbox as opposed to residential address unless citizen card can be picked up from the Lojas just like how the Portuguese do. I might be wrong. Please help.3. One last question, can proof of accommodation be in any form or has to be a lease?Thank you.