Reddit mentions of Hands-Free Nursing Bra Accessory, Strapless Pumping Bra Attachment by Momcozy - Pairs w/Clip and Pump Bras for Breast Pump of Medela, Lansinoh, Ameda, Spetra, Evenflo (Black, Medium)

I bought this bag and love it. Stylish Diaper Bag Organizer for... https://www.amazon.com/dp/B01IV4JN0E?ref=ppx_pop_mob_ap_share
Tons of pockets and comes with a insulated bag. I usually pump about 20 oz give or take and transfer it straight into milk storage bags and I still have room for more bags in the insulated bag.

I put my pump parts in a ziplock bag and store those and my milk in the refrigerator at work. It saves time and is perfectly safe in you handle your parts cleanly and don’t have a baby that is prone to sickness.

I bought this pumping bra attachment. Hands-Free Nursing Bra Accessory,... https://www.amazon.com/dp/B078F15SWS?ref=ppx_pop_mob_ap_share
It works like a charm. Connects to any regular nursing bra or tank.

I suggest you buy extra valves for your pump and keep them in a box in your bag and never take them out. I’ve forgotten those little boogers too many times, but having backups in the bag already helps. I bought the 12 pack on amazon from maymom and they work just like the ones that came with the pump originally.

I pump 3 times in a 12 hour shift and it takes about 30 minutes to get to the lactation room, set up, pump, and break down. I wish I would have done a dry run before going back to work. I fumbled around the first night and probably wasted more time than anything.