I am off to Uni this year, so I have DS in daycare 2 days a week.

He'll be starting on solids by the time he goes but I'll obviously need to send milk for him too. I'm starting to express so I can freeze my milk but am wondering what the best way to store it is? Are those bags the best way? How do you Mummies do it who send their kiddies to daycare etc?!

Thanks