Pumping in the car??

How do y’all do it??? I read a lot about women who pump on their way to work and home from work (figure long commute)... how? I had my husband buy a car adapter yesterday, and just pumped on my way to the airport this morning. It was so hard. Do you use your hands free bra or do one side at a time? How do you adjust the flange if it’s not on right? What do you do with the pump bottle once you’re done (just wait until you get to your destination is the only thing I can think of)? Who has some tips to share, because I clearly need some help! 😆 🤷🏼‍♀️