Florence Christmas Market

Until the 17th December Piazza Santa Croce in Florence is taken over by an annual Christmas Market, the Mercato di Natale di Heidelberg. This German market is colourful and bright and a great place to visit in the early evening when the Christmas lights are on. Visitors can sip hot mulled wine while gazing up at the facade of Santa Croce, feast on beer and sausages, or browse for unusual Christmas presents, from glove puppets to wooden angel chimes. There is even a revolving merry-go-round bar for drinkers who want to watch the world spin by.
> Mercato di Natale (Italian-language Florence blog)

Rome tourist card

If you're planning a long weekend in Rome it might be worth considering the tourist board's Roma Pass. This costs €18 for 3 days, and includes public transport, free entry to 2 museums, and a range of discounts. A standard 3-day travel card costs €11, so by comparing ticket prices of your chosen museums you can work out whether the Roma Pass will represent a worthwhile saving for you.
> Roma Pass
> Rome tourist guide