i3 is keyboard driven. Not reading your ~/.config/i3/config file would be a mistake. All your keyboard shortcuts are defined in that file.

SUPER + SHIFT + Q closes an application
CTRL + ALT +T opens a terminal
SUPER + ENTER opens a terminal
SUPER + SHIFT + ENTER opens thunar your file manager

We explain the order of the workspaces.

Workspace 1 - browsers
Workspace 2 - editors
Workspace 3 - inkscape
Workspace 4 - gimp
Workspace 5 - meld - images
Workspace 6 - video
Workspace 7 - virtual machines
Workspace 8 - file managers
Workspace 9 - mail clients
Workspace 10 - music

SUPER + X is the button to get out of i3
CTRL + SHIFT + ESC is our taskmanager
ALT + F3 is XFCE APPLICATION FINDER
ALT + F2 is GMRUN
CTRL + ALT +M to run Settings Manager
CTRL + ALT + U to set your audio
PRINT to take a screenshot - shows up in your pictures folder
SUPER + SHIFT  + R is reloading the config of i3
SUPER + SHIFT + C is reloading the config of i3