The most important tool for turkey hunting aside from the weapons used, what type of call, or even your camo......the most valuable tool above all else that you can build your arsenal around is
Scouting.Get out well before the season opener and scout, pattern the birds, and know the flock you will be hunting. In the spring season you will be focusing on gobbler groups/roost sites, and feeding/strutting areas. Many people think all you have to do is spend a bunch of money on a fancy call and the best camo around, then run the ridge tops to get a turkey. While that does work in some cases, knowing your local turkey population, their roost sites, and strutting areas will put more birds in your bag than any other tactic. You have to be in between where they are and where they are going. You will know if you set up in the wrong spot because they will answer your calls with every breath as they get further and further away until you can't hear them any longer.
Turkeys aren't smart like most misconceptions, they are actually quite stupid, otherwise why would they walk right up to a plastic or foam decoy out in the middle of an open field with a big camo blob (blind) sitting right next to them?
They have the most accute senses of just about anything you will encounter next to a coyote.....good thing turkeys can't smell or we would never kill one.
They also have very little curiosity of the unknown. One false move and they are gone so fast it's like they were never there. Their keen eyesight and hearing are what makes them so challenging to persue.
Learn their roosting areas.....feeding/strutting areas......and their travel route to and from those 2 areas, then set up in a good ambush point somewhere in between and you will get your bird. The calls, camo, blinds, and decoys are optional if you do your homework. Spend as much time in their habitat well before the season opens, but do so without bumping them off their roosts or calling to them because you may run them out before you get a crack at them. Just keep your distance and learn their habits.
One last thing, if your state allows you to hunt at least until 1pm, I suggest that you take advantage of that. Gobblers may return to the area where they were roosted around mid day, especially if you called to them and they answered you. After they have courted all the available hens for the morning, they will often come back to where they heard the
"One" that wouldn't follow them...that's You. Be there and wait them out.
That's the best advice I can possibly give and it's how I get my gobblers every spring.