Thanks for that Stewart, I'm sure people will find that very useful.
I did something similar a few years ago for the handful of carriers I'm liable to use, as I think either Easyjet or Ryanair changed their rules.
It would be so much easier if there was one standard all the large carriers followed. I understand rules may have to different out of necessity on very small planes on niche routes, but not on the larger ones.
I always have the worry now about them saying that my back pack, with camera gear in, has to go in the hold, as as we have seen with the Delta Airline fiasco, some things are chosen at random, and my bag going in the hold could be one of them.
I always say to myself that I would just turn around and go home on the outward journey, but not sure what I would do on the way back. Fingers crossed it never happens. I went with Easyjet yesterday and they don't have a weight limit for hand luggage, just size rules, which my bag just about fits in.
I got caught out a bit as I was one of the first through the boarding gate, the last point they seem to be able to check hand luggage. The priority boarders went through so I and others joined the end of that queue, only for them to open another door onto the runway, I went from one of the first to one of the last on the plane. When I got to my seat the overhead lockers were full, and so I put my back pack between my legs half under the seat in front. Meant that my leg was in a very uncomfortable position during the flight. I'll have to be a bit more on the ball next time.
I went through Manchester airport yesterday with all my camera, lenses, laptop and tablet in my backpack and got pulled aside at the security check so they could have a better look inside. So many electronic bits I suppose. This is the 2nd time it has happened in the last year. They also did a swab test for any trace of explosive chemicals. There was a chap getting his bag checked before mine, and as he finished he said thank you to the lady doing the testing. She looked surprised and said "not many say thank you".