By now, most travelers know what they can and can’t put in their carry on bag. Having said that, there always seems to be one person in the security check line that hasn’t traveled for the last century and a half.
TSA clearly states each passenger may pack one quart sized, clear, zip topped plastic bag with their three ounce or smaller bottles in it.
Exceptions include medications…both prescription and over the counter products like saline solution and eye drops, and liquids needed for people with medical conditions. They don’t have to be in the bag but must be declared at the security checkpoints.