I think most of us can agree that the "liquid rules" go too far for both customers and crews. But while not being able to carry on toiletries is a major pain the rear, it is not on the same level as not being able to bring something that is needed for workplace health and safety. While US did the right thing by making "vats" of sunscreen available for the rampers, they will be come (if it has not alredy) when the "vats" (at hwatever SPF) will run dry. There are (probably) water fountains available in the ramp ready rooms. But if I were loading bags in the Arizona heat, I would want to have my own bottle of water with me, not have to scurry over to the water fountain for a swig of tap water between flights. There is also the double standards of the crew being able to bring toothpaste and hand lotion, while another class of employess are not exempt, at least in PHX.