Speakers and headphones were as omnipresent as flu germs. Some big companies introduced cool audio products, but the big trend continued to be celebrity-endorsed headphones. Beats by Dre has done so well that every earbud now clamors for some famous support, even from the likes of Motörhead frontman Lemmy Kilmister or, um, "The Jersey Shore's" Snooki.
Finally, there were the massagers. There wasn't anything terribly innovative or new in the massage field, but the booths demoing massage tech were always packed with stressed-out or weary attendees who needed a little back rub after wandering the show floor all day. The latest trend in this field? Little robot massagers that wander around on your back. We'll find out soon enough whether they catch on in the real world.