Originally Posted by pinniped

Cinque Terre. Maybe 3 nights there plus 1-2 in Florence. Lots of B&B/boutique options at varying price points: we booked a nice spot in Vernazza for under 100 euros/nt during the summer. Three full days is probably enough to explore the area. I believe it's fairly easy to do from Florence without a rental car, which is a bonus. (The towns themselves are connected by train - it's actually an advantage to be without car.)