No more lost caps! These containers are perfect for collecting breastmilk. The caps snap on and snaps off to accomodate newborn nipples.
I have also found them useful for pre-measuring formula on the go. They hold up to 2 scoops of formula. It makes it very easy to make bottles with one hand.
For on the go bottles, I fill the bottles with water and pack the formula in snappies. When I need a bottle, I open the bottle with water already in it, snap the snappies bottle open and pour into the baby bottle, then shake. All with one hand!
http://www.snappiescontainers.com/product/snappies.aspx?id=1