However you feel (Betrayed! Nonplussed! Oblivious!) about Apple's decision to switch the way Snow Leopard calculates space from the more traditional base 2 method to the more flattering base 10, it was disappointing to find out that Apple hadn't magically carved 20GB out of your Leopard install.
Most of us have accepted our falsely inflated disks and moved on, but for the rest of us, here's how to force Snow Leopard to report bits like everyone else, which is lame in its own way. Feel free to tear apart my use of the headline "honest" in the comments; I'll be busy weeping over my 250GB 233GB hard drive. [Macrumors, image courtesy of Lifehacker]