Use Clear Plastic Bins for Seasonal or Bulky Items
Keep sweaters, blankets, or out-of-season clothes dust-free and visible in stackable bins
Durable bins with lids that save space and make contents easy to see.
EnHomee 15 GAL Storage Bins with Lid Stackable ...
Optimize Vertical Space with Double Hanging Rods & Shelf Dividers
Install a second clothing rod below the top one to double hanging space — and use dividers to keep stacks of jeans or sweaters neat  .
(No specific product needed—hardware from Home Depot or The Container Store works great!)