[StevieJ]

and I still can’t take more than four ounces of shampoo in my carry-on? I wash my hair religiously and I think the TSA should accommodate MY religion.

You wash your hair in the cabin ??

[CarrotAndStick]

On long flights, with a stop or two in the middle, it helps to have shampoo or soap in the cabin-carry luggage. Remember that the main luggage won’t be accessible to you during mid-course stops.