M104 S0     ;extruder heater off
M140 S0     ;heated bed heater off (if you have it)
M106 S0     ;fan off
G91         ;relative positioning
G1 E-1 F300 ;retract the filament a bit
G1 Z+1 E-5 F9000 ;move Z up a bit and retract even more
G28 X0 Y0   ;home X/Y, so the head is out of the way
M84         ;steppers off
G90         ;absolute positioning