Shortcuts

Shortcuts are something that no vendor can sell to you and it is a trademark of many a great tech wizard. It is a fine discipline to master the techniques on various platforms, be it operating systems or applications.

VI shortcut

Unix originated text editor that is very Zen. Many people give up on trying to learn Vi.

Blender 3D

Its a modelling / animation / game engine application. Without knowledge of its shortcuts, you will not go very far.

OSX

As a pioneer in GUI interfaces, Apple is still to be looked upon when talking about shortcut logic consistency and proper application. OSX#shortcuts