What to do....

So, our block leave is right around the corner and I'm not sure what I want to do. I wanted to go to Rome and Pisa but money probably isn't going to permit us to get a hotel for the length of time I wanted to go so that is probably out of the question. Some friends of ours are going to Greece, others are going back stateside to visit family, and then there's the ones that just spend it here. We have from July 1st to the 18th together as a family. Brandon doesn't have to work at all so there is no set schedule to what we can do. I thought about going up to Austria but the borders are really strict right now because of some G8 meeting or whatever so I don't want to go through all the hassle of that. There is a castle up north called Castel Franco, it's got a moat, so I thought maybe that would be a good place to go. It's not too far away either. Some of the other things I've thought about are Volterra (the vampire city), Florance, Lake Garda (on several occasions!), Vo (to go to the winery), IKEA during the week (when we can actually enjoy looking around), Verona (to finish looking at what we missed the first time), Padova and other close towns (just to look around), and maybe actually get out and see more of Vicenza too. Really there's so much to do just in this little place we live that we shouldn't have to drive more then 3 hours to do anything! And as long as we have gas coupons and our picnic basket we won't have to spend much money at all! So, the big question is, what would you do in Northern Italy during the day light hours that didn't cost much money??? Any suggestions?