Here's what tipped the iceberg for me. It has been a year since I enjoyed a klondike bar. They are 3"x3" by 1" thick ice cream bars, coated with chocolate. Now they are 1/2" thick. Who are they trying to kid? The 8-pack package is the same size and color. The price is still about the same. I am angry! They should raise the price and keep the treat the same size, 1" thick.
Here's a few other things I have noticed over the years, from other manufacturers.
Potato chips More air, less chips. (Yeah, they say the air protects the chips from breaking, but 1 cubic foot of air?)
Big Jerky It was never actually big, until this years model came out! What a rip-off! I just bought a Big Jerky last week and it was a joke. Half the size in all dimensions, and it cost more. The manufacture didn't bother to slowly reduce the size over time, to fake you out. Bang, they just came out with a smaller version, trying to pawn it off as the original.
Coffee All of the manufacturers are selling coffee this year, in the same size can as last year, but instead of 16 ounces, it is now 11 ounces.
Packaging is another form of cost savings for the manufacturers. Here's another list that the consumer is not supposed to notice.
Pop and Beer Cans Every year they get thinner and thinner. They are so thin now that if you drop an unopened can on a table, it breaks a leak.
HERSHEY's bar wrapper They are made of tough plastic now. You destroy the candy by the time you open it. I like to print custom candy wrappers for baby showers and birthdays, but it is hell trying to re-wrap the new style HERSHEY bar.
Wine and Spirits This is an old trick, but still applies. The bottom of the glass bottle is concave and thick. It gives you the appearance that you are purchasing a huge bottle filled to the top, but 50% of what you see is glass magnifying the contents.
Fun Size Anything that is "Fun Size" (especially during Halloween) is a tiny candy bar with a tiny wrapper that looks like the regular size cannot possibly be FUN when it is less than 1/3 the original size.
25% More than the leading brand! They never tell you what the leading brand is. They don't even actually tell you what 25% of what is more. I guess the potato chips have 25% more air in the bag than the leading brand.
Now that I have touched the subject, I am sure there are many more products that you can add to the list too.