Remembering keyboards shortcuts can prove difficult, especially when there are so many to remember, not to mention that they differ from app to app. While tools like CheatSheet can make them easier to use, today I'm going to show you how to enter them without using your keyboard at all. Riverflow, from Katsuma Tanaka, makes using keyboard shortcuts, as well as opening URLs and apps or running scripts, easier by letting you set custom two-finger trackpad gestures to quickly perform actions on ...