My DD is exactly the same (4.5). I've started telling her about privilege versus right. It is her right to have food and drink. To have clean clothes. To have a loving family. But it is not her right to have something bought for her every single time we goto the shops. Or to have an ice cream after dinner every night. These things are special and if they happened all the time, it wouldn't be special, would it?

It seems to be working for us.

BlackCat, it might be time to throw some of the toys out. Actually, throw them out. If you are prepared for that step