Take your blind building and placement seriously. Don't mail it in, but plan it. Think like an artist and make a sketch, remembering that you are trying to conceal your blind in the natural landscape.
Seek landowner permission as always, checking legal state regulations as well. Make return trips during the pre-season to ensure that your blind remains concealed for the season. Take all the equipment you need in on your All-terrain vehicle or Side-by-Side (SxS), from hammers to handsaws to natural materials from the nearby habitat.
Match your terrain. Ever hear of matching the hatch in fly-fishing? It's the same concept in blind building. Use natural and manmade camouflage material to do the job. Realism is the key.
Hunting buddies are your best critics. Take yours along and ask them once you arrive where your hideaway has been built "Can you guys find the blind?" Place a good distance between you and the location of the blind to simulate what ducks or geese would see—helicopters optional.
A trick becoming every more popular amongst some hunters is actually digging out an area for their blind and insert fiberglass pits. Down there in the marsh and mud, they're looking up, with only their heads exposed—and only at the shot.