When I was potty trainer (way back when), my parents stored the seat in the vanity. For my daycare kid, I keep it in a container - from IKEA (they're blue or red, and about $1.98 each I believe. I can't find it online, but I use bins for the childs diapers and extra clothing. It is NOT the Trofast line.) and on the weekends, just put it in the linen closest, so it's away.