going to go on my first shopping trip with baby next week. just woundered how you all prepare bottles whilst out. i would normally just use the cartons but unfortunatly i cant as i am using a low birth weight formula (baby prem)which i can only get in powder. im thinking i should put bolied water in flask this way water will stay hot and then pour into sterilise botle and then add powder , do u think this would be the easiest way ? i cant think of another way ?!