How to move Gadgets in Windows 7 and Windows 8.1 without snapping them to a grid

In Windows 7, when you try to move desktop gadgets to re-arrange them, they snap relative to each other's position or to the screen edge. Windows arranges them automatically to align them to a grid. However, if you have some Gadgets which have a plenty of empty space in between and you want pixel-perfect accuracy to position them, here is a simple trick which you can use to override the snapping behavior. You will then be able to place any Gadget exactly where you want, even close to each other.