Bulk purchase discounts at normal supermarkets are a bit crazy here - why I would want to buy 10 large cucumbers at once, I don't know (or want to know?), and 4L (1 gallon) bottles of milk are the most popular size sold.
I'm going through a process of finding out what products I like here, and where to get them. Many big international brands here are diferent to their overseas versions, such as Special K, so that heuristic goes out the window (not that there are many international brands I recognise here).
The good news is I'm slowly getting there. So far I can scratch gouda cheese off the list, but it's the only cheese so far. Premium gelato brands are sorted, as are luncheon meats and water-crackers, but other than that I have to be prepared for disappointment wen shopping and eating, at least for a while.