If you join Friends of the Uffizi you get access to all state run museums in Florence and can go to the top of any queue. Museums include the Uffizi, Accademia, Bargello and San Marco but there is a longer list.
You can join in advance but it is easy to do when you arrive. Membership is for the calendar year and not for 12 months from payment but it is still value for money and encourages you to go to museums 'little and often'. Varied costs but it is 100 Euros for a family.
The office is opposite the main Uffizi entrance in the old post office building.
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