Show us your headphones.
That's a sore point. I treated myself in duty free just before we left Heathrow for Cuba to these all-singing, all dancing fancy headphones at a cost of £52. Tried them out on the plane and they were really good. They are the same material as earplugs so they expand to fit your ears which means they stay put, block a load of background noise out and are really comfortable.
Must have left them in hotel somewhere on the island. Really frustrating thing is that my crappy apple headphones were in the same pouch and I swear I remember shoving them in my luggage just before I closed it...Grrr.