All of the ideas helped - thank you! Here's how we coped:
The record breaking 102 degrees in Paris day we decided to spend in the Louvre. We found varying levels of coolness there. We were there for about 5 hours, including a relaxed lunch at the Cafe Mollien. Then back to the hotel for an air conditioned rest and recharge. That night was a late night for the Louvre, so we went back again for another 1.5 hours until closing.
The Churchill and DeGaulle exhibit is the ONLY part of the Musee de l'Armée that was cool - the other galleries were hot as we made our way through. Same with the Rodin Museum. The Cluny wasn't cool, except for the Frigidaruim, of course! :)
I am a HUGE fan of the cool ties from REI - I used mine daily during the canicule (a new French word I learned - heat wave!)
My insulated thermos was worth its weight in that I could keep it full of ice for cold water to drink. That was a big help.
Skirts and sandals and sleeveless tops...my uniform for those hot days.
And finally, my friend offered me a mister can of water as a refresher to take with me after our visit. They were available in all of the pharmacies. This seemed like a luxury - but it was really cooling, and always made my daughter and me laugh as we misted each other's faces. :-)
Laurie