some places in Berlin that I like to go to (all Google links):
Jubel | Patisserie
Meierei | excellent ‚Apfelstrudel‘!
Du Bonheur | Patisserie
Bonanza Coffee Roasters
Cafe Einstein | Vienna Style Kaffehaus
L’Èpicerie | french wine, groceries etc.
Goldhahn & Sampson | fine groceries, wine, coffee & cook books
Frischeparadies | fresh fish and anything a foodie wishes. Try the Bouillabaisse!
Markthalle Neun | checkout the website for opening hours and events
Zeit für Brot | best bread in town
KaDeWe | department store
Manufactum | quality things like 100 years ago
Flee market | on Arkonaplatz on Saturday/Sunday
Boesner | artist supplies
Modulor | materials and artist supplies
Wollmeister | everything Merino