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.
1 Place a T-square along the line in your drywall and run a razor along that straight line created by the T-square. 2  Break the end piece off from the scoring line.  Double-check the end of the drywall makes it to the center of the strapping piece or joist.