Duke William of Normandy won the battle because was well prepared and had a good army. They prepared carefully for the battle. The Normans had knights on horseback who were skilful fighters.
A utility knife, metal ruler, and a hammer can be faster than trying to carefully saw an opening. Score the drywall a couple times till you are most of the way through, then just knock a hole with the hammer and break the drywall back at the score lines.
So, here are a few tips to make the job a little easier. 1  Make a Door: When cutting out a square, leave the 4th side uncut--use this as a hinge to leave the drywall flap in place. That way, you don't loose the flap; you remember which was it fit into place, and you save yourself the trouble of taping up that side.