How to use my frozen stash

FairyDuster003

DD is one month old as of yesterday! I have been using a hand pump about once, sometimes twice a day to keep a small freezer stash in case of emergency or if I need to go out etc... I usually get about 4 or 5oz really easy and fast and I just freeze whatever I pumped no matter how much it measures.

So I now have a freezer of like 10 bags that range from 3oz to 5oz and I don't know the proper way to use it! I've thawed out a 4oz bag and she didn't finish the bottle so I felt like I wasted it!!

Should I maybe just freeze 2oz at a time? I plan on working part time soon and I'm not sure how to properly use my frozen milk.