I am coming to Lisbon for a week in September. I have rented a flat in Bairro Alto. My rough plan is to go with the flow most nights, see where my feet and stomach bring me (any interesting neighborhoods that a travel guide will leave out?), but I am also looking for 2 special dinner recommendations as well as advice on how to shop for groceries, as I will have a kitchen and eating 3 meals a day in restaurants becomes tedious and expensive. Also any tips on coffee culture? Thank you.