Can share how do you wash your breastpump parts at work? I don't Hv the luxury of time to religiously wash my breast pump parts after each session.

At work, I use Tollyjoy bottle accessory detergent to briefly clean the pump parts (~1 min) before popping them into a huge lock & lock container filled with water and a sterilising tablet. Some people also use a compact steam steriliser, but that's too much trouble for me. You can also use hot water to rinse your pump parts, but it might not get rid of the oil.