Earbuds
Klipsch S4i II. I still have the original S4i set, but the rubber pieces connecting the cables to the earbuds are split (the second pair this has happened on - I convinced the Apple store to swap out the first pair after 6 months). The new ones have a seemingly much sturdier design - even sturdier than the "S4i rugged," notably the flat cable, which is a very welcome change. The tone seems a little different, but still excellent for the money.
I consider myself a bit of an audio snob, and for the money, I haven't found a better pair of headphones with a built in microphone. The new stuff by Polk Audio looks really nice, but doesn't have the microphone, which I use daily.