Stackable Storage Containers

I want to find containers that actually stack without sliding off each other because every set I've owned has lids that warp after 2 months in a dorm kitchen. The ones in our common area have interlocking ridges on the lids and bottoms that snap together. You can build a tower in the fridge without worrying about a cascade of leftovers at 2 AM. Clear sides let you see what is inside without opening every single 1 to find your pasta from Tuesday. My roommate and I share shelf space and these containers let us use vertical space in a mini fridge that barely fits anything as it's. Sealed tight enough that nothing leaks even when sideways, these handle the angle problem common to communal fridges where shelves are never quite level. Small ones nest inside the large ones for storage, so the whole set fits into a single cabinet space when not in use.