On another note, a while back I bought a variety pack of little restaurant storage containers. There's brands like DuraHome, Reditainer, etc.
Like these (promo pic):
I'm only slightly exaggerating when I say these things were life changers.
Same lid for all the sizes (8, 16, 32oz) and fully stackable. Microwave, freezer, and dishwasher safe. I tossed a ton of plastic storage stuff in the garbage after getting these. A ton. No more mismatched lids, piles of stuff that sorta stacks and looks so alike but is off just enough that nothing fits right, etc.
I kept some of my quality rectangular pieces for when these don't quite fit for certain leftovers but these do the bulk of the work any more.
I wish I would've bought these years ago.