Forgot one of the bigger ones too:
As you can see, my wood shed consists of carefully stacked areas with roofing felt on the back sides facing the fence lines, roofing felt in the tops, and sometimes another leftover plywood for extra strength. the side yard one was an aluminum restaurant shelf unit with roofing felt over it and wood facing that was kind of woven into it. Staple gun used to secure the roofing felt ot selected pieces of wood.
Alrighty...the only thing I'm really proud of is that it was all scrounged up or leftover material. No cash outlay that had not already been previously laid for another project. Oh...and all free wood too. Gawd...I've turned into such a begger in my pauperdom years