What is it? Three small Thermos brand food containers.
Where did I get it? I picked up two of these while thrifting with my sister. I had been on the lookout for some good picnic/camping containers for a while but they always smelt really bad. My sister suggesting cleaning them with baking soda and vinegar. They were super cheap (50 cents each) so I decided to get it a shot and it worked perfectly.
Do I use it? I will use these during the upcoming picnic season.