Just back from a really great weekend.
Overall, it was hands down, the most beautiful place I've ever been. I cried when I walked round the corner to the grand canal. It is ridiculously pretty, with a veneer of faded grandeur, so not at all picture perfect.
We didn't 'do' a lot. Walked up to the Rialto market on the first morning, then down to St Marks. Timed it all a bit badly wrt to getting into the basilica, camponile or doge's palace to be honest - if these are must-sees for you then definitely book online to queue jump. The queues were enormous so we gave them a miss.
We then walked up the edge of the lagoon to the arsenal, the sun came out a bit, had an ice cream, stopped for a couple of spritz. Popped into every church we walked past to make up for missing St Marks!
Sunday we took the boat to Murano, had lunch there, then took the boat back the long way round so we saw a bit of Guidecca. Bit of shopping and went to the Frari, which was amazing.
Food we found hit and miss, service was incredibly slow (even by Italian standards) and Saturday lunch was really touristy. The hotel recommended a place called Vinaria, which was lovely, right on the Grande Canale but not touristy. Also had a great lunch in the Osteria al Duomo in Murano, after walking out of a more flashy place.
All in we loved it. We definitely could have done more, but when DH and I go away it tends to be more about walking around, stopping for a drink actually having a shag in peace and being a bit more laid back.