The greatest cosmetic invention of the modern era is the invention of dry shampoo. When we are rushed for time and have a dirty hair after work or a working out at the gym, using dry shampoo will leave it looking all presentable, as if you’ve just washed it. So if you want to make your hair feeling and looking all great when dirty, do try dry shampoo. Here are 10 reasons why you should give dry shampoo a shot: 1. A must-have in the gym bag After a workout in the gym, we feel all sweaty and dirty, especially if we are to get to work directly after hitting the gym. So if you have post gym plans or workout during your lunch break at office, do keep a bottle of dry shampoo ready in your gym bag....