Mix all the ingredients in a bowl, cover, let rest for 15 minutes.
Stretch and fold the dough: grab a handfull, pull as far as it will go, then fold it back over onto the dough to keep it roughly ball-shaped, turn the dough 90 degrees. Do this 4 times, then then flip it over. Gently pressing down and rolling it around, form a smooth ball. Cover and let it rest 30 minutes. Do this a total of 3 times. See #5 below
See #6 below.
Cover the bowl with clingwrap and place in the fridge for 12 hours. The dough should have doubled in volume. If not, take it out and let it rest in a warm place until itt has doubled in size, maybe 1-2 hours. Oven with the light on is perfect for this.
See #7 below if using a baking stone/steel.
Divide the dough into 3 equal pieces, genthly degass, and shape into rectangles and let rest for 45 minutes.
Form the baguette: Fold/roll the about 1/4 of the long edge back about 1" toward the middle of the rectangle with all your fingers on both hands, and seal the seam with your fingers. Be careful to not squeeze the gas out of the dough, but make sure to pop any large bubbles, and but you want a smooth seal. Do this two more times and you should have a cylinder with the seam on the bottom.
Stretch the cylinder to the desired length by rolling it with your hands.
Cover the cylinders with flour, and place on a baker's couche, and let proof until the dough springs back very slowly - approx 30-60 minutes. See #8 since you don't have one.
If not using a stone, preheat the oven to 500F, and place a bread pan filled with hot water in the lower rack. See #6 for the reasons why.
Using a lame, razor blade, or a very sharp and thin knife, make diagonal cuts along the top every 1.5" . If the dough slides around when you do this, hold the dough at the top, and make one long cut along the middle.
Bake on parchment paper, directly on the stone, or use a perforated silicone baguette mold on a baking sheet (this is what I'm doing)
Carefully open the oven door and keep your face away from the door while doing this. You don't want a bast of hot steam to the face.
Put the baguettes in the oven.
Using a spray bottle, spray some water on the sides of the oven to create some steam.
Reduce the temperature to 475F and bake for 15 minutes.
Carefully open the oven door (no steam to the face!), remove the water pan and towel, rotate the baguettes, and lower the temp to 450F.
Bake for another 12-15 minutes, until deep golden brown.