Hi Glenn,
Nothing, it has been a pleasure for me. I suggest you a little trick, this time seriously. You can take a touristic bus, in Paris there are several that carry tourists on tour of the town, in the most important places. The bus set off from Rue de Rivoli (near the Louvre :lol: ), some campanies come to get the tourists at the hotel, you can ask for them at the reception. The tour is of about three hours, you and your wife can choose the places you like and then come back using the metro subway, that is the most quick way to go in Paris. With only a ticket (I suggest to make the 3 or 4 four days card) you can travel from one part to another of the town, until you don't exit from the subway, in a few minutes.
However, you cannot loose Notre Dame, la Tour Eiffel and the Trocadero, Le Sacre Coeur and Montmartre, a tour on the boat along the Senna river, Le Louvre obviously, if you can spend half day the Versailles castle, using a RER train (only half hour from Paris), THE MUSEE DE L'ARMEE, and for your wife the Champs Elyses and the Lafayette stores, where to buy parfums, make up articles, fashion dress and bags. If you visit the RATP site on WEB, it's the public company of urban transports, you can take informations and an useful plan of the subway net in Adobe program. Have you understood that I went eight times in Paris and I am always in love with that town, even if my Rome is wonderful too?
Regards MDM