Toy storage is the one category where decluttering before you pack saves more time and money than any packing technique. Sort first, then box by category, and moving day stays manageable.
Pro tip: Photograph a favorite play area setup before you break it down, so recreating a familiar space at the new home is fast and comforting for a young kid.
Watch out: Do not pack broken or recalled toys just to sort them later; check the Consumer Product Safety Commission recall list before boxing anything questionable and toss it now.