Whenever I stay in the French Quarter, this is my first destination after checking in and getting settled. Wonderful pastries and bread -- croissants in many varities (my favorite is almond), eclairs, cream puffs -- so many choices, you'll find yourself too tempted to make a decision. Great cafe au lait and hot chocolate are available to wash it down.
For lunch, come back for delectable sandwiches and quiches. Try to get a window seat, where you can watch the passersby as you savor some time in this cool oasis. The building is old and charming, and the interior is ornately decorated, with a small courtyard and fountain that is pleasant on less-steamy days.
This is a somewhat neglected part of the French Quarter, because it is not close to the action on Bourbon Street or Royal. I enjoy the quieter pace, and the Cafe d'Or is a great rest stop after touring the Old Ursuline Convent or one of the historic houses nearby.