You can store leftover pancakes, wrapped or in an airtight container, in the fridge for 3 days. I like to reheat them in a skillet for a few minutes, or the oven (350ºF/175ºC for 10-15 minutes) so they don't get soggy. You can also freeze them in freezer bags or airtight containers, separated by a layer of parchment paper, for a couple months. Thaw in the microwave, wrapped in paper towels.