Lovely owl jars for your kitchen or laboratory

I do. Pretty much anything that comes in bulk, paper bags (flour, sugar, etc) or atmosphere does weird stuff to (thickening starches, granola). I use the plastic lids to avoid the hassle of the two-part sealing lid and rust.

ETA: Makes me wonder why you think it’s impractical. I like that I can see contents, wrote on and erase labels, the come in every capacity and two major neck sizes, dead cheap and they look great. What do you find impractical about them?