You have to cull! I am a hoarder too. I have trouble throwing anything out. But I have just had to do it with toys. They get given so much stuff and I just don't want it. I don't think kids need many toys at all. When they start to get too many I notice their behaviour is not as good either. I think they feel as overwhelmed as me. Nothing gets really played with, it's just a mess, and things are not looked after properly. When they have fewer toys, they respect them and find it easier to keep them tidy. So I keep the good quality open ended toys, and everything else gets chucked or donated or sold. I have a box of sentimental stuff that I can't chuck in the garage. And then I make sure everything has a place and is easy for them to find to that they can get it out and put it back themselves easily. When I don't have too much stuff they play better together, they look after their things, they use their imaginations more, and everything stays tidy a lot more often! SO I guess what I'm saying is it's really hard for me to get rid of stuff too but what I do is focus on what I am giving them instead of what I am taking away. And they rarely even notice when something is gone anyway, lol.

Craft stuff on the other hand, don't get me started, I have a whole room of crafty mess that I can't throw out because I might use it for something ROFL.