Pat, I looked into this for our NICU about 6 months ago and for us the most economical and
practical option was sterile urine specimen cups.  We provide them free of charge to our pumping
mothers.  They are not as handy as the volufeeds which can be attached directly to the pump kit
but they do hold about 3 oz and are much easier to handle than any of the plastic bags. They
also have a label right on them for mothers to fill in name, time and date. Hope this helps.

Genevieve Courant, MSc,RN,IBCLC
Sudbury, Ontario, Canada