Interested too - we have a water softener, so our drinking water is from either a separate tap on the kitchen sink which is filtered water or from the fridge dispenser, also filtered (nwmm - both are good options to jugs to save money but cost a bit upfront - we put them in when we did our extension)
ATM we are storing filtered, boiled and cooled water in a bottle in the fridge. With DS, we stopped boiling at the same time we stopped sterilising which I think was 12 months.
HTH!