From 1981 to 1989, the American gross domestic product, in constant dollars, expanded by a third.

FORBES: Debunking Reagan's Debunker

U.S. real gross domestic product (real GDP shown in constant 2005 dollars) grew every year except for a small decline in 2009.

FORBES: Ray Kurzweil Defends His 2009 Predictions

And, at least to me, this constant cleaning and changing of said pants seems far more gross and burdensome than occasionally stepping outside with a Kroger grocery bag firmly wrapped around my hand.

CNN: Apparently This Matters: iPotty