I don't usually buy expensive ornaments but we do have a few homemade treasures that I want to keep safe for the years to come. To help keep things tidy and under control, I use cheap foam pads. These egg crate pads are designed to make beds feel a little softer but they're also perfect for storing ornaments.
I buy a twin mattress size pad for around $7 and then cut it to fit our Christmas storage containers. I created almost 20 layers of foam padding our of one foam pad, giving us tons of layers of cushy comfort for our ornaments to enjoy.