How to quickly enable or disable Drupal CSS/JS optimization using DRUSH

I find this command very handy during development. Drush can easily disable or enable CSS and JS aggregation using the vset command in Drush. Here's how:

Code

// To turn on JS Aggregation
    drush vset preprocess_js 1 --yes

// To clear all Cache
    drush cc all

// To disable JS Aggregation
   drush vset preprocess_js 0 --yes

// To clear cache of JS and CSS only
   drush cc css+js

// To enable CSS Aggregation
   drush vset preprocess_css 1 --yes

// To disable CSS Aggregation
   drush vset preprocess_css 0 --yes