A family friend passed along some baby things she is finished with, including a Pump In Style Advanced with all her accessories. This is the same pump I've been using, so at the very least, I just scored some extra bottles and breast shields. I'm thinking it would be great to be able to just leave one motor unit at work (yes, I know that it is an open system, but that doesn't concern me), and maybe a whole set-up. Which parts would you sterilize and use, and which parts would you just replace? I'm thinking about replacing the tubing, and the little white patches on the yellow things, and boiling the rest.