I've got another (maybe dumb) question for you all. It sounds like most of you rinse the pump parts and store in the fridge between pumping sessions, so you use just one set per day and don't have to spend time washing between sessions.

But if you rinse and put in the fridge, do you have a problem with water getting in the tubing the next time you pump? It seems like every time I've pumped when they weren't totally dry, I end up with some moisture in the tubing.