I use blank lines in my code if that's the standard where I work. If not, I grin and bear it. No point in going against whatever style predominates at a given office. But I'm always amazed when I see (often young) programmers trying to cram as much code as they can into a small space, as if the density of text makes it all the more impressive.
http://www.youtube.com/view_play_list?p=1616B39A07992AF0