We are working hard to slot in a day in Orvieto. It looks best done on a Monday (due to some other obligations in Rome). I looked at museums - the big archeological museum is closed on Mondays but it looks like the Etruscan is not. I'm less concerned with museums (since we will have done a LOT of museum in Rome and at the MANN in Naples) but more with restaurants and shops and the church. Does the town shut down on a Monday?
bean