Wish I had a picture. They were large trash bags filled mostly with dry leaves. We pushed them up against the outside walls, not stacked just a line of single bags against the base of the outside wall around the entire house except for the doors. Our house is relatively small, 640 sq. ft./two 40' shipping containers, so this was easy to do. Snow falls on them adding to the insulation. Not an immense difference but noticeable. Ground squirrels sometimes created nests in them but there's always a downside. Gave up on the idea because of the trash.
how would you surround your house with it? like stack them?
Wish I had a picture. They were large trash bags filled mostly with dry leaves. We pushed them up against the outside walls, not stacked just a line of single bags against the base of the outside wall around the entire house except for the doors. Our house is relatively small, 640 sq. ft./two 40' shipping containers, so this was easy to do. Snow falls on them adding to the insulation. Not an immense difference but noticeable. Ground squirrels sometimes created nests in them but there's always a downside. Gave up on the idea because of the trash.