Depending on the type and style of a can cooler or koozie, you can store them in various ways. My father likes to store them in a basket above the fridge, I've seen other folks leave them in drawers, whereas larger stainless steel options often end up in cabinets due to their size. Many can sleeves fold down easily when not around a beer bottle and can be tucked away. Some folks even hang wire and use clothespins or binder clips to hang their koozies instead of taking up valuable kitchen space.