I recently took a week-long trip back to Costa Rica, which I'll report on further at a future date. But it was during this trip that all of the carry-on rules were changed, and I have to admit I'm still a bit confused by what they consider to be essential. For example, you are allowed to carry up to four ounces of KY jelly on board the aircraft. For what essential, mid-flight purpose is this being allowed?
Here is the language as it appears on the official TSA list:
Up to 4 oz. of essential non-prescription liquid medications including saline solution, eye care products and KY jelly
Gel-filled bras and similar prostethics