I thought I would elaborate a bit more on "window management". I usually set up with 4 windows open. Quite often a gobbler is coming straight to the blind and you have to wait until you know what side he is taking. Then I begin opening the appropriate windows, but not until I close the windows directly across from them. If you leave a back window open or even cracked he will easliy pick up movement.
At this point I am on my knees, I unhook the top of the DB window and lower it straight back slowly. I try to do this while he is walking. Opening them this way pulls the window back into the shadows of the blind.
Not being aggressive enough on opening windows has cost me more than a few gobblers that have strolled past within spitting distance. The outside of my windows are now covered with DB's black window covers. They seem to really be effective. Last year I shot a gobbler, he went down where he stood, a gang of jakes ran in to check him out. I did a little experiment and opened and closed the windows in front of them 1/2 a dozen times. They were under 10 yards away, and never noticed. I wear a dark jersey glove and black sleeves.
I always try to set the blind up so I am in the shadows of the morning sun, and never open a window on the sunny side of the blind; they will see right in. I keep a dark piece of material in the blind and pin it up on the sunny side of the blind.
I have taken a few with shoot through screens. Make sure you are shooting perpendicular to the screens. I am going away from them this year. Arrow flight is often questioned, and I feel they are not needed.