Does anyone know any info on blade rentals? Am going to Paris Oct. 10, but don't want to carry along blades. Any suggestions???

The roller-shop "Nomades" (place de la Bastille) does blade rentals.

http://www.nomadeshop.com/

(click on the "location" -meaning "rental"- red tab on the left for details and fees)

I'm sure some other shops probably do that too, I'm only familiar with this one.

There's one near Bastille I think.
We can see it on sunday's with Rollers et Coquillages ...

That's the one : as said, Nomades is near Bastille (50m off the Bastille Circle, on Boulevard Bourdon), that's the shop that hosts the association in charge of the sunday afternoon rides (Rollers et Coquillages).

pfff rowan don't make us repeat a second time what we said a first time