One idea that has really helped me is to decide how much space should be used for toys. We have a closet with toys that we rotate out of the playroom. If the closet gets too full then it's hard to manage and some stuff needs to go. The decision is not some much about whether some things are still useful. It's about what will we keep that will fit into our home. I feel like too much stuff makes it to hard to manage. I hope this teaches my kids to have some limits instead of having so much. It is hard for me to let go of some things with all my memories. Some times I just put it in storage for a while until I'm ready. I hope this helps. Good luck.