Infant care ifc

Enrolling my boy into ifc soon, he’s 3 mths old by then. The ifc want us to give the number of milk bottle according to his feeding time . Eg. Between 7am to 7pm , he got 6 feeding time, hence I have to prep 6 bottles. Do u guys do the same too? Now I’m using comotomo, abit pricey to buy so much ?