Breastfeeding questions/ help!!!!

Ashley
First time mom here, and I have some questions about breastfeeding for experienced mama's. 
I will be returning back to work after a month, my goal is to breastfeed until then, and use a manual pump while at work. Is that practical? It will only be 8 hour shifts, four days a week. 
Breast milk storage? How do you store breastmilk? I am hoping to pump directly into a bottle, seeing as I will only be gone for 8 hours in the afternoon-evening. Is that a thing? To store directly into the bottle?
And lastly, how would I warm milk up? I briefly read an article stating that you can't microwave breastmilk. 
I am scheduled to take a breastfeeding class closer to due date but I just feel like I can't wait to ask these questions.. I want to know if this is all going go be possible before I spend a lot of money buying everything I need.