I'd seen the Lomo Effect before and liked the look -- high contrast, unusual saturation and color, vignette around the edges -- but didn't know the name and could only sorta fake duplicate it on my own. I read this article on Lomo photography and tried it immediately. The results are impressive and I saved it as an Action in Photoshop so it's just a click away with any photo now. Slideshow:
Still working on finding the right shots to process, but so far the best seem to be softly shaded ones with low contrast to start. Also, the "mood" of the effect is somewhat bleak, so happy cheerful shots in full sunlight look awkward.
Full size pics at the Picasa Web Album.