As a parent, part of our tasks is to always keep the house organized. But since children are naturally playful and they don't really care about their toys after playing, it is your responsibly to keep it in order once again. Bit if you noticed that the toys are already too much, decluttering might be the best option to resort with! Just check which among the toys are not being played with by your child and try to store it on a place your kid will never see it. By the way, all the advices you mentioned were usable, I am planning to do it one day!
Clear ups are a time to be out with the old and in with the new.