Dry shampoo is a brilliant invention, especially if you live in a city where your hair gets oily quickly or if you have a fringe or short layers that need a quick refresh. It adds texture, volume, and grip. However, dry shampoo is not a replacement for washing your hair (unless you're at a festival), and your friends and colleagues will notice if you've used it as that. Trust me, I speak from experience. I use dry shampoo all the time, and it's made me lazy. The problem with it being such a popular product is that we can all now recognise that telltale matte texture and residue. Nobody will blame you for the occasional spritz, but think of it like a styling product, not a permanent excuse to get 15 minutes longer in bed.