I don't understand this line of thought - always putting them in the fridge after each use. OK on a slow afternoon, but in the morning? I'd be concerned about your bar fridge temp about half an hour into a rush if you are in the fridge for every single drink. And unless you have 10+ pitchers, I don't see how they are going to be in the fridge long enough to help the bacteria problem. I'm still with Bryan, miKe, and Adrian on this - chill them if you can, but its really no big deal.
And, I don't care what they teach in the SCAA class, NEVER resteam milk (or even hold it for 5 minutes). Just learn how to fill your pitchers.