I bought these shoes yesterday at a new (to me) store, MJM Shoes. It's owned by Burlington Coat Factory, but almost all shoes....and inexpensive!
I don't like slides, and would have bought with a back if they were available, but I'm super happy to have found a pair of shoes that aren't sneakers, but I can wear trouser socks. Hopefully they'll last all day.
For back to school night, I may switch into my leopard shoes, depending how I'm feeling. I chose regular teacher clothes rather than a special outfit, dress or suit.