Visited France and Italy this past summer. Like most folks suggested, we packed light.
But between the crowds and the heat we were going through 2-3 pairs of clothing each day!
Hotel laundry service was out of question: $15 per t-shirt etc
So we decided using the local laundry was the best option.
In Paris we used this one - seemed clean and easy to operate. My wife was hesitant of using a laundry but we ran an empty cycle before actually washing our clothes. $6 for 1 large load - wash and dry.
And the best part is that I did the laundry early AM - 7 or so. Got to see a different side of Paris while waiting for the laundry to finish. Back in the hotel at 8:30 and wake up the family!
Just sharing if it helps!
Laverie Automatique
+33 7 54 19 68 03
https://maps.app.goo.gl/qWYx7LeWG51GFyMr5?g_st=ic