Was hoping that upon our arrival we could buy Venice vaporetto passes and Museum Passes at the airport TI since the airport is small and maybe less mobbed than the canal docks and St. Mark's. Rick doesn't seem to think much of the Venetian tourist services. If you know whether we can buy these at the airport I'd love to know. As always, thanks!
Yes, you can buy them in the airport by the luggage carousels and after you exit the secure area as well as a vending machine outside by where the No 5 bus to Piazzale Roma picks up.
http://www.veniceairport.it/en/at-the-airport/terminal-maps.html