I will be returning to work as a high school teacher in two weeks. My son will be 6 months old. So far, we have done two half-day and one full-day trial, and everything has gone well with the baby and with pump output. My question is about making the process of pumping as efficient as possible. I'm hoping some of you can walk me through your specific logistics of getting the pump set up and then put away (and milk stored) multiple times a day. For example, what parts of the pump can stay assembled? What needs to go in the fridge and is it possible to put the whole PISA bag in there? Can I pump into the same bottles I have already used at a previous session, or do I need to use different bottles each time? I am lucky that my school will arrange coverage for me to pump at the times I need to, but I want to help out my colleagues by being as fast as possible! Thanks for sharing your suggestions and experiences.