If you want to make it way ahead, can you freeze the dough? If so, what's the best strategy for making a BUNCH and freezing some/most of it?
Yes! Of course you can freeze your dough. You can freeze it whole, or you can roll out you gnocchi and lay it on parchment paper-lined baking sheets to freeze. Then, transfer to ziplock bags. Boil from frozen—they'll float when they're cooked.