Katie, there are LOTS of these black-bottomed clear-topped round and rectangular containers at the wonderful Dollar Store that is just west of Happy Foods on Oakton in Skokie. If I read the price sign correctly yesterday, these containers were three for a dollar.
The Dollar Store is not one of a big chain and I can’t seem to think that they have a name other than “Dollar Store”. I can’t find an address for them but the Happy Foods is just east of them. Here is Happy Foods’ address:
4616 Oakton St
Skokie IL
Happy Thanksgiving to all! --Joy