Did a DHD on a European carrier last week, said my carry on bag (flight kit)had to weigh less than 6 kilos, yes 6 kilos! Heck, it weighs almost 4 kilos empty. Ended up having to check it, at a charge to boot. Companies have discovered a cash cow, and now they are milking it. I calmly explained to the agent that their policy was going to cost them a customer, I don't think she got it, or cared one bit.