How To Disable Touchpad While Writing Article Or Documentation In Ubuntu/Linux Mint Or Derivatives Linux

I am a blogger so most of my time goes in writing articles and tutorials. One problem that I have been facing while typing is that my palm comes in contact with the touchpad and the cursor moves somewhere else on the screen or editor and my article is all messed up. I even have to rethink and rewrite sometime when many lines have got deleted due to this problem. But finally I have found the solution to this problem. Here is how you can fix this.