I have a feeling UC may have answered this, but the archive search rarely works for me.
Why are gasoline prices measured down to the mill, i.e., 1/1000 of a dollar? (at least in the US)? Is it the $9.99-sounds-a-lot-cheaper-than-$10 theory? Or are Federal taxes making the pump price that way?
On the topic of gasoline: why has there been a 20-30% increase in prices since last December? (I don’t recall another war with Iraq. :))