Maintaining milk supply when going back to work

Kayla

I need tips on maintaining my milk supply when I go back to work. My baby is almost 3 months. And it’s not necessary for me to work but I thought I would just get a job for a few days a week. Any tips on pumping at work ? How do I even talk to the manager about the fact I have to pump every few hours? How to pump faster? What to pack, snacks, bottles, etc?