On my last few trips to the local Cost U Less I've been noticing that a lot of products have been changing their packaging and playing with the volume/weight...
This does not make me a happy camper!
In my world, a half-gallon bottle should actually contain a half-gallon, a five-pound bag of rice should contain five pounds and so on... The old standard one-pound package of spaghetti now seem to be 14-ounces or less.
Fiddling the amounts to increase profit is an old trick used by companies but, for those of us who do long term/range provisioning, it requires some higher math to figure out if you can get from point A to B without running out of something needful.
I don't know about you, but my higher math skills really suck when I'm forced to listen to piped in muzak while being jostled by folks who can't seem to control their shopping carts. So to be safe I tend to overbuy or not buy some stuff at all.