I pumped for 12 months with my first and my second is now 5 months old. I was given an office for pumping and just work in here and close the door when needed, like you. I am down to two pumpings a day - at 10 and 2, or there about. I have a pumping bra (I don't wear it. It really got stretched out with my Ameda pump, and doesn't lay right) that I put over my shirt (or lift my shirt and put it on as needed), and that way I can easily continue to work while pumping. I put the milk in storage bottles, and into my carrying case with the ice pack, and wash the parts in using soap and hot water in the kitchen sink. I have a towel with me that I cover the parts with too and from, and dry them off with. It takes maybe 2 minutes to wash (I set them on a paper towel before drying). I haven't tried that bag, but I may need to look into that before my next business trip. If you have any further questions about pumping at work, or any advice I can offer, let me know.