Our centre doesn't allow made up bottles of formula, I used to send in formula dispensers with the required amount, 2 sets of clothes and 6 nappies per day, his ruggie. He has 2 of the same so one is always in his bag when the other is in the wash.
His hat and sippy cup stay at daycare. Ds had his own cot when he was in the babies room in which sheets and blanket were supplied by the centre. Daycare supply food and sunscreen. I provide a bottle of dymadon to keep at the centre with ds's name on it as they use panadol but we use dymadon at home, he's been a terrible teether.