YouTube Keyboard shortcuts

It's often easier to use keyboard shortcuts then navigating to and through menus and clicks. Most programs have handy little shortcuts to expedite processes, most of which can be configured. Websites have these too although most aren't evident until you accidentally hit upon it or the site points it outright.
Here are a list of YouTube keyboard shortcuts which will lessen the amount of clicking and mousing; some are only accessible through the shortcut keys:

Reguar Shortcuts (only works when focus is on the video)

Space - Pause/resume video
Left/Right Arrow/- Rewind or forward in 5 second increments
Up/Down Arrow - increase or decrease volume

Other Shortcuts (works regardless where the focus is)

J/L - Rewind or forward in 10 second increments

K - Pause/resume video
,   - Step backward (while paused, comma)
.   - Step forward (while paused, period)

Shift + . - Increase video speed
Shift + , - Decrease video speed

M - Mute or unmute audio
F  - Toggle fullscreen on/off
C -  Toggle captions on/off
/  - Activate search bar