Am trying to pump and collect enough milk for dh to do a feed every now and again, but it is slow progress as I only seem to collect tiny amounts at any time, meaning I try several times a day. Do I need to resterilise pump and breast shells for each use, or could i put them in fridge or something? If so for how long? I'm not that organised to have them ready for when I want them, as demand feeding, and times still quite unpredictable. I have been lent a steriliser, but no instructions eith it! Any useful tips? thanks