I can use my own bags for produce and my own containers for a massive range of items sold in bulk (flour, grains, nuts, cereal, pasta to name a few). And then a few others that I have not seen elsewhere: I can fill up my own bottles with shampoos, detergents and oils!
Various cities around the West Coast and Austin also have co-op grocery stores, but Berkeley Bowl takes it to a different hypermart level while retaining a flavor reminiscent of Whole Earth Access.
And, honestly, even the Whole Foods (Amazon) flagship HQ store is a disgrace and a disaster: they don't sell any form of pita or lavash bread of any sort and half of their bulk bins are completely empty as of writing. This is a consequence of corporate bean counters who optimize for the wrong things. They were supposedly once a boutique bougie grocery store patterned after Italian grocers but instead developed into conspicuous consumption of pseudo luxury by anyone who drives an Audi or BMW.