I can't believe some of you are saying this is Flybe's fault, it isn't, it's the passenger's issue which then becomes the crew's issue. It is clearly stated on the website what the sizes are but passengers continually try to circumnavigate the charges. All this talk about standard cabin bag sizes is nonsense, what exactly IS a standard cabin bag size? Standard to who? Boeing 737s? A cabin bag isn't a hold bag, a hold bag is just that, it's generally a suitcase, suitcases should not be brought on as hand luggage. Hand luggage should be small item carry on baggage, not oversized suitcases. If my crew bring to my attention there's large bags on my aircraft in the cabin they get offloaded without recourse. Stop blaming Flybe for your inability to bring the correct sized luggage into the cabin. There's no excuses.