Bolillo goes beyond Walmart - they come from Mexico and points south. As a kid I remember making a lot of picnic sandwiches on hard rolls, those were the big deal in the Pacific Northwest at the time. Down here in Texas, lots of things go on bolillos. And they're also great for making garlic bread. The local Hisapnic grocery stores often have panaderias inside. And I get tortillas in a Mexican grocery, made fresh the day I buy it and often times still warm. Life is good here if you like all of those Mexican breads! And Mexican bread goes beyond that, the biggest (as far as I know) cookie and bread maker from Mexico is a company called Bimbo Bakeries, and they own the big company from Fort Worth called Mrs. Baird's Bakery. (The big plant is near me and at night when the wind is blowing from the east I can smell bread baking.)