[Mr Tom Morrow]

I have read that you can avoid the tolls all together but I haven't done it sorry.

However with Avis they don't do a daily fee that just then stops so you will be charged the maximum admin fee of $19.75 plus the tolls you use.

sunpass/rentalcar

You dont need to do anything in advance or at the desk ref tolls as it's all done via photographic means of the rear tag. That then gets billed to Avis who then bill you, plus the admin fee. It takes from a few days to 6 weeks to bill you as they do this in 'cycles' and not daily.