+1 on the military camo netting. I've been using some this season with great results.
I'd get some good pruning shears so you can quickly trim branches to create a ground blind if you decide to roam around.
Back cover is very important; make sure whatever you're wearing blends in with whatever backcover you intend to use. As already mentioned, falldowns and such make excellent cover.
Lately, I've been using an area on my lease where the rancher keeps castoff equipment (piles of old fence wire, some farming equipment, etc) and the deer are used to seeing these items, so I just re-arrange stuff slightly to give me better concealment and sit down with a tree to my back; I just look like another piece of castoff equipment. It's no different than when you were a kid and building forts, heh.
You'll most likely get busted when drawing your bow. If possible, create 'shooting lanes' in your front cover and draw from concealment then shoot through a lane. Alternatively -- and especially if you have no way of drawing from concealment (limited or no front cover) -- let them walk past you then draw and shoot, taking a quartering away shot.
I usually create ground blinds on the fly as I roam around, but here is a more permanent blind I created at the start of the season using some cast off cattle panel with limbs weaving through the panelling, maybe it can help give you some ideas: