California's gem of coffee shops: "Peet's Coffee and Tea"
This one is located in San Francisco at Fillmore street. Actually Peet's is quite a big Californian net of coffee shops-houses. They can be found in different formats from a big coffee shop with a lot of tables to a small desk in a supermarket. They also sell good tea leaves and decent chocolate under the Peet's trademark.
To Doomer and Lampada, google map believes that there is a Peet's point in Chicago, you can try their tea.