I don't know that it matters specifically but we use Enfamil Gentlease. DH was a huge help last night washing bottles and making formula and making bottles for today. However, this morning when I went to pack Levi's bottles for daycare, I noticed that he had made another pitcher of formula as well. Which means, after his last bottle tonight I will still have enough formula left for 2 to 3 bottles. I know you are not technically supposed to use made up formula after 24 hours, but would it really hurt to use it for the first couple bottles tomorrow morning?
Re: Formula question
I think if the pitcher is still in the fridge, I would use it for at least 1 bottle. I'm bad about not strictly adhering to the formula directions sometimes tho. For instance, if I heat up a bottle during the night but Damien falls asleep before I get to the nursery, I will use it up to 3hrs later (past the 2hr window of use once it is heated). Never had an issue and he's as healthy as can be. I don't do it often though so it isn't a norm. I know the reason for not using refrigerated unused formula after 24hrs is the risk of bacteria growth, same for using heated unused formula beyond the 2hr window. You're rolling the dice in that sense but I know of many moms that do it. I wouldn't make it a habit.
I should add my kid takes his bottles room temp so they aren't heated then cooled.
Target also has deals that save you even more. For example, three cans of formula equals a $10 gift card. We stocked up on like 9 cans since December and we're now down to 7 cans. I think that should carry him to next year.