R.
M.,
You've probably gotten a lot of responses, but here's my two cents. I breastfed both of my children. Whenever I needed extra milk for bottles (going out of town, etc.), I just pumped at a time that my child did not normally eat. You should pick one time during the day that you will pump specifically for storage, and do it at that same time everyday. After a few days, your milk will come in regularly at that time, just as it would for a normal feeding. Also, try not to do it too close to your baby's eating time at first so that you don't run the risk of not having enough for him! After you pump for storage once a day, you may be able to move it up to twice. Hang in there, it'll all work out!