When mentioning that we would be traveling to Italy, many people offered advice, most of which was quite excellent.  Here were my favorites: 

Eat as much pizza as possible.  Check.  I would say every single day included at least one meal of pizza.  I don't regret that.

Avoid the house wine after going on a wine tour.  Meh.  Not an issue for someone with an unsophisticated palate such as myself.

Don't feel bad about having gelato multiple times per day.  Check.  Why?  How about, why not?

Advice about visiting Pisa?  No thanks.