Working mommy’s pumping schedule

I’m starting back to work August 1st and will be pumping. It’s an 8-5 job and normally have a 30-40 min commute. How often do you guys pump at work and not notice a decrease in your supply. I do have an hr lunch break.

However the first 12 days I have a training 2 hours away. I don’t think I’ll have time to pump in the mornings before I leave because I have to be there at 8am. Who has pumped while driving? How do you do it? Any tips?

Also how do you store your breast milk? Do you use bags or bottles?