Naturalists, what do you do all winter?

On the US Gulf Coast, we have insects and blooming plants every month of the year, and the bird fauna is richer in winter than summer, so there’s no “indoor” season. I spent many years in the northeast, though. If I were there again I’d want to learn more about winter buds, bark, and seed pods, mosses and liverworts, and about what overwinters in rotting logs. And yes, more ID’ing on iNat.