Photo taken on 6/6/08 in Santa Monica | © Copyright 2008 by Jonathan Alcorn (Sundogg) via LAist Featured Photos pool on Flickr When it comes to the cost of a gallon of gas these days, it certainly doesn't seem to be the case that "it can't get any worse." We grumbled when it got to $3, winced when it hit $3.40, cringed when it hovered at the $4 mark, and now we're seeing prices......