My daughter is starting school in August and will be going 2 days a week. How do I know how many uniforms to buy? She can wear white polos or button up shirts and navy pants, skirts or jumpers. But it doesn't specifiy what the appropriate amount of each item is.

This is what I have in my cart so far. It helps that children's place is having a sale!

4 short sleeve Oxford shirts
4 long sleeve Oxford shirts
2 short sleeve polos
2 long sleeve polos
2 white cardigans
2 skirts
1 skinny pants
1 chinos (want to see how the pants fit before buying more)
5 tights
1 navy light jacket
1 navy heavy coat
2 navy vests