I know its about revenue, but I sometimes wish at least one airline would be a leader and just decide to base it all on weight and not the total number of bags.

I generally end up with right under 50lbs on my trips, but would prefer to still be able to pack things in two lighter bags rather than have to put everything all into one. So if JetBlue changes the total allowance, I would like to see it just be based on weight, not the number of pieces.