How do you save Seed potatoes?

Last year I put seed potatoes in an egg carton in the fridge (as recommended by a YT video). They shriveled up into potato raisins and wouldn’t sprout. This year I covered them with a black plastic lid inside a rolled up paper bag in my basement (which is about 60 degrees through winter) and they sprouted like crazy! What do I try next year? Has anyone done this successfully?

Last year I put seed potatoes in an egg carton in the fridge (as recommended by a YT video). They shriveled up into potato raisins and wouldn’t sprout. This year I covered them with a black plastic lid inside a rolled up paper bag in my basement (which is about 60 degrees through winter) and they sprouted like crazy! What do I try next year? Has anyone done this successfully?