I was at the Brampton CT gas station picking up the buy 3 ultimate washes and get one free (I like doing this in the winter particularly to wash the underbody of my car) - and so I went into use one at Bovaird and McLaughlin - only they don't do underbody washing there! Anyways, I then noticed that some CT's charge $11.99-12.99/ultimate wash and some (Brampton - $8.99/ultimate wash). Now I just buy the coupons there and then head to the one on the Queensway/427 or McCowan and Sheppard for their full car washes. So you'll save about $9 for the 4 washes. Not great, but not bad and at least decent for getting the salt off the underbody in the winter.