I'm flying to Germany in December from the infamous terminal 5 at Heathrow. I think it would ease my journey considerably if I travelled with just hand luggage. I've looked at the dimensions allowed and at 56x45x25cm and "any weight as long as I can lift it into an overhead locker" it seems quite generous. Has anyone travelled with the maximum sized bag? And do they still have those cage things to check sizes - and if so would it be touch and go to fit the maximum bag inside? I'd rather take a much smaller bag than risk having to put my case in the hold - on the other hand it will be winter and I'd like to pack some bulkier items. Thanks for any info.