Book/Toy Swap Party
This might be the most fun way to get rid of outgrown toys and books. The downside is that this swap party doesn’t actually cut down on the amount of clutter—it just changes what the clutter is comprised of! But, if you set limits—each child can only take home one toy—and then have all the kids pitch in and help box up and deliver the leftovers to a worthy organization, then maybe you’ll accomplish your goal while making everyone happy!