I second the Zaino. Right when I got my car, I did the dawn wash, clay bar, Z7 wash, all in one, z2 then Z8... Love the results!!! Now when I wash the car, all I to do is do is wash, then I alternate between Z5 and Z2 between washes, then always follow up with Z8.
I think the car looks better every time I wash it.
Oh yea, I use the AIO on the rims also every 4-5 washes.. the brake dust comes off easier that way.