[jfengel]

A gallon of milk is still a gallon of milk. A pound of carrots is still a pound of carrots.

It sounds as if your basket of goods is different from mine. Most of the examples on that Wikipedia page are sugary foods, which I just don't buy a lot of.

[newsclues]

I used to buy 3lbs of carrots, but now the bags are 2lbs but cost the same.

[jfengel]

Here, two pounds of carrots are $1.79, just as they have been for as long as I can remember. I don't have a spreadsheet, but I know what carrots cost. They certainly haven't shot up by 50%.