Usually, my mom buys me and my sister some mango jello snacks, and the smaller versions are stored in containers like shown in the photo. Instead of just throwing those containers away, we decided to use them for another purpose store some ingredients inside. This included sugar, flour, and some small condiment packets.
While also providing a use for the containers, it also helped reduce the amount of trash we are throwing away. Not only that these containers are being used instead of ending up in a landfill, we don't need to use a plastic bag to store them once their original package has been opened. It also is easier to scoop (flour, sugar), compared to the usual paper packaging they are in original, as the paper packaging can tear easily.
I usually try and keep these kinds of plastic containers, as they are pretty useful when needing to store something, or keep something in one place.