According to Fred Decker, There are places where one size genuinely does fit all,
According to Fred Decker, There are places where one size genuinely does fit all, but the computer you work with every day isn't one of them. Getting your computer set just the way you like it takes time, and usually some trial and error. One of the trickiest things to get "just so" is your mouse settings, partly because sometimes it's useful to make it go faster or slower than usual. That's why some mice have a DPI switch, which changes your mouse settings with a single quick click.