I am considering expressing some milk so that I am able to leave her for a couple if hours if and when something comes up. Tbh I am back and forth about whether this is something I want to do yet as dd2 is only 11weeks.
I ebf dd1 for 8 months and then introduced formula in a cup. So I have no experience of expressing or bottle feeding and I have no idea what I'm doing so I'm hoping some if you will be able to answer a few questions.
When do I fit expressing in around normal feeds?
Does it hurt? 
Re: sterilising, to I need to buy a steriliser or is there another cheaper way to do it?
Is any brand of bottle better than the others?
Seeing this written down it seems ridiculous and maybe I'm just supposed to know this stuff but I haven't a clue!
Btw I've bought a medula swing electric pump.