Great question! We advise to rotate toys no more than once a week, and potentially every few weeks. To learn more about toy rotation, please have a look here: For EU visit https://blog.lovevery.eu/child-development/rotating-toys-the-montessori-way-better-deeper-play/ for UK visit https://blog.lovevery.co.uk/child-development/rotating-toys-the-montessori-way-better-deeper-play/