the quantity is going down.  What used to be a five pound bag of chicken breasts is now a three pound bag.  And the best trick I've seen yet?  A few weeks ago, my son wanted a few cans of ravioli.  We bought the Chef Boyardee brand.  Looked the same as always.  Opened the can to find far few raviolis because the thickness of the can had been increased in the most remarkable way.