Problem is, if they make announcements over the PA, ear plugs are little use. This is, for me, one of the most irritating features of modern-day air travel - the sell, sell, sell. I know it keeps ticket prices down, but I can't count the number of times I've been returning on a late evening short-haul flight to the UK and trying to get some "shut eye" only to be woken by announcements about scratch cards ("You, too, could be a millionaire...." - see, I've learnt it by heart!) or "discounted" Stansted Express train tickets which cost more than I've paid for my air ticket (no prize for guessing the carrier....).