Tour de France 2010

Slightly unrelated to the topic at hand, but has anyone been to watch the finish in Paris before?

My mother in law is visiting this summer and we'd planned to take a weekend trip to Paris anyway and it turns out she'll be here that weekend. I've got transportation and accommodation sorted, and I guess I can figure out the obvious things (get there early, bring sun cream) but anything else I should keep in mind?

Yes, been there. You need to get there fairly early but not more than a few hours at the most unless you are right up by the finish line. Take food and water. Near the Ferris wheel on the Rue de Rivoli is good because you can stand on the wall there and get a better view.