Increase trackpad speed beyond system settings

If you are not satisfied with your trackpad speed and you've already set it to the maximum in System Settings pane, it could help you.

Go to Terminal and

open ~/Library/Preferences/.GlobalPreferences.plist

You need com.apple.trackpad.scaling. System Preferencies's maximum is 3. From my experience, 30 is insane. I use 15, it's enough to move cursor with one movement from the left side of left screen the right of the right one.