My current laptop keyboard configuration

Uses three layouts (US Dvorak, Swedish Dvorak, and plain Swedish)

$ cat /etc/default/keyboard
# KEYBOARD CONFIGURATION FILE

# Consult the keyboard(5) manual page.

XKBMODEL="pc105"
XKBLAYOUT="us,se,se"
XKBVARIANT="dvorak,dvorak_a5"
XKBOPTIONS="ctrl:nocaps,grp:lctrl_toggle"

BACKSPACE="guess"