Clear PVC roofing panels made by Palruf and sold at Home Depot - less expensive translucent material for a sunroof, greenhouse, or porch deck cover, but still lets in lots of light.
Simeon Rich and Sarah Farquharson have transformed a modest 0.1 acre plot into the site of a striking contemporary home — built for just £825/m²
Shed made from Pallets! This photo shows a "before" pic but you could make so many things using this basic idea. Now to find pallets! http://www.oklahomahistory.net/ttphotos9a/Pallets031409b.jpg
Such an obvious cloche - why didn't I think of this? You can cut the sheets to suit the size of your beds.
This 154-square-foot backyard retreat, constructed in less than six months, used salvaged lumber from three Oregon barns, a salvaged copper roof, natural plaster walls and a wood stove.
roofing out of used cds- this is going to look so cool on the potting shed!!! it may also blind a few birds- ouch.
How to Build a Garden Shed Out of Pallet Wood - Farm and Garden - GRIT Magazine
I like the idea of using corrugated roof with clear - so light can get in... but I guess it will depend on what material it is? I am happy to clean it every so often - but will need a ladder!! Like this shape and simplicity..