1) Food prices at restaurants have not varied much from place to place
2) Coffee prices are, I believe, controlled by the government. EVERYWHERE an expresso is E1.7. That's why Starbucks failed in Italy.
2) Florentine steak is going to be E50-E60 - most places charge 50-60/K, with 1 K min. We had a Florentine steak in Siena, and it was a great treat. Crossed that off the bucket list
3) Contrary to my expectations, almost no cafes or restaurants have free wifi. I brought a roaming WiFi device, which has proved very helpful but not fast.
4) In late September-early October, we had no problem getting Firenze tickets to the big sites.
5) Lots of rain now. Bring that umbrella. If you forgot, there are about 1,000,000 peddlers willing to supply your umbrella needs on the grounds of the Duomo