Can I store extra pizza dough in fridge?
Yes, the colder the fridge, the longer you can keep the dough in the fridge. It will overrise after a day or two. Take it out of the fridge for an hour or two until it happily rises.

Pizza dough can also be frozen. I freeze mine immediately after finishing, and thaw it in the fridge for a day. Supposedly you can thaw it in the microwave.