Quote Originally Posted by pedja089 View Post
...USB it depends on lenght. It usualy doen't meter. But if it is long, it is critical to have diff pair with proper impedance....

I read that people have been getting away with what they consider sloppy traces.

My USB traces are 20cm long, running side-by side, far from any large current. My application does not have to support USB 3.0, 2.0 is plenty fast for me.