By Doc Zero.

Original essay not available.  From my original blog at the time:

What does the bread aisle of your local grocery store look like? Chances are it’s quite large, featuring shelves filled with many different types of bread. Each type of bread is also offered by different companies — you’ll have several brands of wheat or rye bread to choose from. One of these options will probably be the “house brand” of the grocery store itself, and it will likely be cheaper than any of the other brands, particularly for staples such as white and wheat bread . . .