Hello - We have a 16-year old daughter with limited mobility who is medically fragile. She will be in her wheelchair anytime we are out and about in Florence (she can walk short distances so restaurants are okay). My questions is about visiting museums. I want to get a reservation for enjoying the Uffizi and Academia so we can avoid the lines as much as possible (she ends up having a view of everyone's butt). The problem is her health can change quickly and I don't want to be locked into a purchased ticket for a day we can't go. Can we buy tickets once we arrive to use later in our trip? Do I buy tickets for all 3 od us or will one of us go in as her assistant? We arrive on 4/1 and depart on 4/8. Any other tips for getting around in a wheelchair in Florence would be appreciated too! Lisa