Headed to Paris... recommendations?

[Chozn1]

Hi all, the misses and I are headed to Paris next week in celebration of ten years of marriage. She's definitely the planner and I'm the one that likes to wait until the last minute (as this thread would attest) but I was wondering if some of my fellow TRF'ers had anything they had done while there that really made the trip for them. We're going to do the standard fare with the Lourve and what not, but sometimes the best experiences come from a recommendation, so if you have one, throw it at us