I can confirm it is a nationwide phenomenon (Destiny)

by ZackDark , Not behind you. NO! Don't look., Wednesday, March 25, 2015, 20:05 (3779 days ago) @ Fuertisimo

However, most brazilians do tend to do monthly supermarket shopping, so we have a LOT per person.

Protip: there's usually a "15 items or less" special queue in supermarkets. Unless you're going for the monthly list as well, try to use it as often as possible. (Protip to the protip: beer cases tend to be considered a single item here. It's usually up to the particular store's policy.)