The plan today was to take the metro out to St. Ouen and go to the Fabrique du Metro museum which is all about how the metro was built, history etc. Oddly enough, there is not Metro stop near this place, so after getting as far as I could, it was another 15minute walk to the museum. On arrival they told me I couldn’t possibly be admitted without a reservation, although it was clear that no one was there. So, hopped on the sight and tried to make a reservation only to find that the next opening is in January of 2025 and that they only do tours one day a week. Very French! Kind of reminds me of last trip where I bought an Arc De Triomphe ticket at 9:00am for a 10:30am visit, got there only to find they were on strike and had been for quite awhile. In the USA, this would be fraud, in France it is normal. Anyway, I exacted a certain small satisfaction from giving them a horrible google review, which I know they saw since they responded to it. Hopefully others will see it and it will save them wasting a morning schlepping out there. Hopped back on the bus and walked around the flea markets of St. Ouen, which are famous but not much open on Friday. They seem to do their thing on Saturday and Sunday with endless amounts of brick and brac and junk for sale. A decent Poulet Fermier at Paul Bert and then a long bus ride back into town. In an interesting inovation, the IDF Mobilites IPhone app now allows you to use your phone or watch for tickets. I jumped through the hoops and bought one ticket on my watch to try it out, and it does in fact work. This will be a major game changer for visitors who will no longer have to buy transit cards.