Went in Novemeber - luckily we had sunshine all week.
Take a trip to the other islands - Murano and Burano - go by regular ferry round by the hospital side - goes past the cemetary island which is a strange place ...
Also do a lagoon tour - goes past some well posh places and is amazing if you get a cruise liner go past - seems totally out of proportion to the surroundings.
Then get up early go across St Marks square and across the wooden bridge to the school / university side and see regular Venetians going about normal life - makes you glad to be on hols and will make the kids appreciate being off school !!
If it rains and the tides up take your wellies - we went a few years back and they had all the benches out in the square !!
Can't remember the resturant name now - Carletto I think between Bridge of Sighs and Rialto Bridge - the name of the "path" escapes me now ...
An evening walk along Rialto etc is good too - shops look great all lit up.
Dogues Palace has 2 tours - not been but go on the longer one - you see much more appartently.
Oh - and go round to the Admiralty area too - there is supposed to be a good museum there too.
Apologies for the long mail - got me on a roll now - one of my favourite places ...