This seems to be the central discussion forum for Dollar General.

On that theme, going further afield in this thread:

An interesting article on Dollarama, a Canadian chain of dollar stores with a formidable record.
hardingloevner.com - Loonie how a canadian dollar store became one of the worlds most profitable retailers
"Dollarama earns a higher profit margin than any other large department store or discount chain in North America, including Target and Costco....
And of the 50 largest consumer-discretionary companies globally—a broader bucket that includes US giants such as Marriott and McDonald’s—Dollarama’s operating margin ranks ninth, just behind the luxury brand Christian Dior."

As you might expect from their impressive financial results and fairly recession-resistant business area, the stock rarely gets cheap. A little like a Canadian Costco in that way, except that Dollarama has increased in value per share much faster on almost any metric, and generally trades at a lower (though still rich) valuation multiple. It is a little pricier at the moment than its own usual level, maybe 20-30% richer? At least EPS have been growing faster lately than their own usual.

My lovely spouse is a big fan as a client when we're in Canada. I'm a fan as an investor, though I unwisely sold at some point in the past and stupidly haven't bought back in.

Jim