How do I switch the control and caps lock key bindings?

If you are running the X window system, you can put the following into
.xmodmaprc

remove Lock = Caps_Lock
remove Control = Control_L
keysym Control_L = Caps_Lock
keysym Caps_Lock = Control_L
add Lock = Caps_Lock
add Control = Control_L

Hidden Hint: Use (xmodmap -e "pointer = 3 2 1") to make the mouse
lefty friendly.