Walmart's CEO talked about this a few years ago—how crowded their stores get around midnight on the last day of the month, because that's when people's payments clear: about 11 p.m., customers start to come in and shop, fill their grocery basket with basic items, baby formula, milk, bread, eggs, and continue to shop and mill about the store until midnight, when electronic — government electronic benefits cards get ac…
All of the people I talking about worked full time. They all had ungodly sums come out of their paycheque every two weeks to pay for health insurance (from what I understand it was not a great plan either). I don't really know what kind of point I'm trying to make here. On one hand it's nice that there are a lot of cheap options at WalMart for people on small budgets. On the other hand, it's sad that so many WalMart employees (in my own experience) are the ones who so badly needing to take advantage of those prices.