Our first day in Venice, we'd woken up too late to avoid huge crowds in the city, so we decided to visit Lido, an island just to the south of Venice and served by several vaporetto lines.
It turned out to be a welcome relief from hordes of people, and a good place to find restaurants. We ate at a small pizza place with terrible service and not-so-great pizzas (which is why we no longer remember the name of the restaurant!), but made up for it with delicious gelati - Italian ice cream - and a stroll through the island.
There's not much to see compared to Venice, but there is a post office as well as several places to buy postcards. It's just the place for a temporary escape from craziness!