I duck/goose hunted for years without a dog. I used a good pair of chestwaders for starters. I even used an old "Pocket Fisherman" if I had a long "retreive"(pinched the barbs on the treblehooks on a big DareDevle). I walked the marsh all day this way. You can still carry half a doz dekes too. Set up in a little bay with the wind angling towards you so the shotbirds are washed ashore on your side.
I`m sure some other ideas will soon be showing up.

Ron