Draw:
Hold 'd' and Hover Over a Square
Erase:
Hold 'e' and Hover Over a Square
Reset:
Press 'r'
Save:
Press 'v'
Change Grid Size:
Press 's'
Toggle Borders:
Press 't'
"I call it the Etch-a-Sketch life. Every few years, you should shake that thing up."
-John Tesh