breastmilk

Ok so im a SAHM at the moment & I pump everyday just for when we go out (dont feel comfortable breastfeeding in public)... Anyways I read that breastmilk can last 8 days im the fridge & I'm wondering if I pump yesterday is it ok to add the milk I pump today into yesterdays?? & also I've been storing the milk in bottles, is there something else I should store them in or is bottles fine?

Thanks.  

It should be okay. I always used the breastmilk storage bags so I could write the date on it.

Ok thanks.. ya I'm thinking of getting storage bags so I can write dates..