TSA has clear rules on what can and cannot be carried onto a plane. To simplify everything, remember 3-1-1:
3 ounces or less per container of liquid or gel; 1 quart sized clear zip top bag; 1 bag per person.
Don't forget to dig down deep into your purse or briefcase for that random bottle of hand sanitizer, chap stick, lipstick, and/or eye drops. These should all be placed in your quart sized baggie.
Check out TSA's holiday travel tips. I learned a couple of things.