We will be in Venice (and Verona) in January for about a week total....all the tips on restaurants have been very helpful but I wonder....is it really necessary to make dinner reservations before we arrive?? Or would the day of or th day before be ok most of the time in mid-winter?? We will seek out the moderate to moderately high places recommended on these boards...also, will be staying in Dorsoduro at Pensione Accademia.....any recommendations for dinner within easy walking distance?? (It might be very cold at night!!) Any further tips on Verona???