This is our 1st time with fying since 9/11. Are the regulations different from each airline oris it a federal standard? For eg. Liquids like shaving , shampoo, body wash. Deordorants, razor for shaving. Is it carry on or checked bags? For flying should we all be in sweat pants to avoid taking our belts off? We need to know so there is less hassle at the airports. Thanks