The washing habits of Parisians in 1805 is my latest piece of research! Poorer people rarely washed but when they did, they used the fountains or the Seine which was very polluted with all the filth of the city and the slaughterhouses. There were barges called Bateaux-Lavoirs from which you could bathe more safely. Some were moored opposite Notre Dame. There were separate barges for men and women. It cost about 4 sous or 20 centimes to use the facilities of these floating wash houses. On the sunny side of the river, more barges served the laundresses. One can only speculate whether the people and clothes emerging from the river were any cleaner or smelt less badly than when they went in!
Apparently very few apartment blocks in Paris had plumbing, even as late as the 1960's. I was there in the late 1960's and we certainly had, but then the hostel I was staying in was in a nice part of the city - 10, Rue de Richelieu - called Rue de la Loi during the Revolution. A place that appears in my historical crime series featuring Alain Duval. I enjoyed myself there and loved Paris. I still do.
Another piece of information which I had not realised - the word négligée means neglected or scruffy in French. Logical when you look at the similarity of the words but I never though about it before.
Odd what scraps of information prove useful to an author.
A quick note to say that Duval and the Empress's Crown will be published tomorrow on Amazon.