Cool ClicksToo Many Toys by David Shannon, Ages 4-8
Website:

Spencer is a young man who is flush with toys. Armies of soldiers, convoys of cars, a zoo's worth of animals and a bonanza of weapons are just the front ranks of all the toys that populate his house inside and out. And every single toy is declared his favorite, especially when his mother reaches her clutter limit and tries to reduce the overflow. Spencer's eloquent defense against the toy culling and the following dramatic negotiations per item will be at once familiar and hilarious to children and parents who repeat these moments in their own lives. A must-read for every parent who has ever stepped on a Lego (or ten) in bare feet and for the child who left them on the floor, Shannon's Too Many Toys is a charming nudge to clean out the toy box.
Ages 4-8