Yeah I use my iPod when I'm out and about, I often go to sleep listening to my iPod. Or have intense "in the dark" sessions.
I just changed my headphones today, to some of those "Skull Candy" headphones which are fairly popular in the UK, not sure about anywhere else. It's those jelly bud type right in the ears type of headphones, and they are absolutely dreadful. Completely negate any sort of low end, so it ends up sounding a tinny mess.
Yeah, they're absolutely massive here in the US, despite nearly everyone saying (truthfully) that they're overpriced and generally pretty bad. I've had a pair of JVC Marshmallows for almost 2 years now, and found them to be pretty damn powerful.