1. Big shops of course, now its more common.
In my home town its the same
2 напиши сюда названия банков в России,я не знаю какие у вас есть
3. They sell postmarks, magazines, gazettes.
4. With traditional russian kitchen and with kitchen of Caucasus countries.
5. Yes, even have European kitchen too.
6. Of course there are lots of them.