I was very impressed when I picked up my car - had noticed the sign for free toothpaste, floss, and mouthwash but did bother - expected it to be travel size. Since I forgot my mouthwash, I asked for an got a fullsize bottle. Also got dental floss.
Checked in to the hotel and guess what, mini-sized bottle of mouth wash (first time ever).

Still a nice and generous offer from Avis. Maybe I will stick with you guys, afterall. ^