I was curious about the physical dimensions of $789 billion, and found a handy site to help you calculate the size of ANY amount of cash: Cash Dimensions.

I wanted to be able to visualize the impact of the latest "stimulous" bill, but it is so big, that even imagining the total with bills aggregated is incomprehensible. For example, according to the site, stacked up the pile would reach 282,725,000 feet, which is 53,546 miles.

The circumference of the earth around the equator is about 24,902 miles, so if you stacked the stimulus dollars they'd go around the equator twice and then some. But that's still to big to comprehend, don't you think?