To protect soft fruit in pots (e.g. strawberries): I had to discard a growhouse, so I brought the rusted metallic frame to the tip and kept the staging grids. I Re-used them as support for a frame to protect my few pots of strawberries, fixing them at the edges with some garden wire and lined it with a thinner netting appropriate for bird protection. The frame is 3sides, and the top is only the netting, so that it's handy to lift the "cage", pick the ripe fruits, and put it back very easily. Oh, and I leaned it against a south facing fence, securing the netting with hooks to deal with the few gaps left. All this for free and freeing my conscience for discarding non-recyclable material.
PS: thanks to all of you above for contributing with your thrifty tips!