I exc bf but I want to be able to express some milk for just incase times. I'm going to start leaving LO for an hour every 2 days...getting a horse! And he does go 3hours between feeding plus he has been having food the last 2 weeks . So how do I go about this? I have sippy cups for him, do I express then put it in the bottle then in the fridge? Then OH will take it out and warm it if lo needs it? How long can you keep the milk? Both my boys have never had formula or bottles so I don't have a clue! Also what is the best time of day to express? Thanks!