I bought a brita pitcher. ..I think I paid 25 but its convenient yu just keep filling it
I bought a kettle and filled it every morning and let it boil. All I would have to do is pour it in the bottle add the formula and shake. It worked great cause I always had boiled water on Hand. My mom gave me the idea, just make sure the kettle is cleaned and u boil water in it first then through it out and reboil water in it again to make sure the kettle is cleaned.
I just bought the jugs of water..they're only like a dollar per jug but if you don't wanna buy the jugs and can't hook a purifier up to your sink then they have the water purifier pitchers! Just fill with water and it purifies it!
With my first we bought the big blue jugs. My husband always kept up on them so it was never really a hassle to me...it was kind of nice cuz the dispenser has hot or cold water so I could just put a little of the hot and then some cold and have a bottle instantly instead of having to heat it up. I'm not sure about the best brand of sink ones tho, sorry!