Eighteen Days to Go

We are now well into the month when I'll be boarding the plane to Venice on the 28th. I've just had a great time trawling the photos in Wikimedia Commons for one to put here. This view, by Didier  Descouens, is titled Campo Santa Sofia. Be great if I can find it and see it when I'm there.

I'm really getting excited now, and not a little anxious too. It's about five years since I used my passport to go out of the country. What do I pack to wear in Venice in March? Do I need to go out and buy things to wear as well as a guide book? Can I fit everything in within my luggage allowance?

Venice has been on my bucket list since I did a history of art course in the 1970s. I've bookmarked a number of  websites about things to do in Venice. How much can we fit in in three days? How can I make sure I get around the unmissables? I think I'm going to be on tenterhooks until we get there.