the best way to remove a steering wheel if you dont want to use a puller is.....
as simon said...LOOSEN the nut but DO NOT remove it fully.......or you will end up with a similar halo to princess di........

grab the wheel on the left and right.....with the seat back a bit.....pull on it as hard as you can till you basically lift yourself off the seat.....
and wiggle the wheel left and right at the same time.....within seconds it will pop off....



TIP.....before removing the wheel.....make sure it is dead centre......so when you put it back on again it will pointing straight......