Ready made formula vs powder?

Anyone else’s little one prefer ready to go formula over powder? So I’m trying to wean to formula before I go back to school. (I’m a teacher and I just CANT pump, I did at the end of year and it was so stressful) anyways baby is 7 months old. It’s been a major struggle for her to take powder formula and tonight I decided to try the ready to go and she had a little fussing and then downed it. I’m like great that stuffs expensive but happy she took it!

My next question is if you used the ready to go formula how did you send it to daycare? She’s in an in home daycare and she likes the formula at room temp. So obviously I could just sent it a long with a bottle but should I send more than one bottle or have her reuse one bottle? Sorry if it’s a dumb question, FTM over here.