Same as above Steraliser, bottle brush, powder, bibs, sickies, powder dispensers (very handy for 1am feed - no miss counting out of scopes by sleepy OH) etc.
My way of making bottles is:
Wash and steralise bottles.
Boil fresh kettle and pour 50% of required water into required number of bottles for 24 hours (so if on 6oz bottle I put in 3oz)
Place bottles in fridge
When it comes to feed time, add required powder, boil fresh kettle and pour in other half of water, mix well
serve
This made the perfect drinking temperature for my LO to drink. no need to worry about heating it up and bottle made when needed in 2 mins flat so screaming baby kept to a minimum.
When I'm out I simply take powder in a little dispenser, bottle with 50% of water and add boiling water from a thermos (Thermax by thermos keeps water boiling for 24 hours).
Hope this helps!