GIR: Get It Right Premium Silicone 9x9 Lid | $14 | Amazon
These one-size-fits-most GiR lids self-seal to fit pretty much any bowl, pot, Tupperware, etc. and right now they’re selling for their lowest prices ever.
Normally selling for about $20, these lids create a mini vacuum (after you push down the middle and let the air out) in the containers they are placed in and help you preserve your food.
Get yours before they sell out... and there’s a good chance of that.