I'm very very lucky to have been to Paris several times so going up the Eiffel Tower is not on my to-do list anymore. I do try to make time for Musee d'Orsay and Musee Marmottan on just about every trip, but now, its about the shopping and eating When I'm in Paris, these are my must-do's. Have hot chocolate at Angelina - a tea salon at 226 Rue de Rivoli. Seriously ... the best hot chocolate in the known universe. Make the chocolate/macaron shopping rounds. La Maison du Chocolat, La Duree, & Jacques Genin. Also of note are Christian Constant, Jean-Paul Hevin, A la Reine Astrid, and Fauchon. Make the tea shopping rounds. Mariage Freres is my favorite, but this could be because its right across the street from the 2nd arrondissement La Maison. Betjemen and Barton is also very very nice. My favorite places to souvenier shop in other countries are the grocery stores. The food hall at Galleries LaFayette and La Grand Epicerie are a freaking goldmine for bringing home gifts that people will enjoy much more than the little Eiffel tower statue you might have been considering. I have learned that a 2 Euro package of Gaufres de Liege (sugar waffles) will make my kids happier than any other gift I could think to bring home. Bringing home jars of le romarin and la basilic to non-traveling friends makes their spice cabinet feel much more exotic than the jar of McCormicks sitting next to it. If I'm in Paris on a Sunday or Tuesday, I will go to Raspail Market (its all organic on Sundays) to buy sea salt and foie gras. Raspail is also conveniently close to La Grand Epicerie so I usually plan to hit both at the same time. What are YOUR favorite non-sightseeing things to do in Paris?