Good news today for business travelers and others who loathe the idea of arriving at their destination without all-important toiletries: small quantities of liquids, pastes and gels will again be permitted through security checkpoints if they’re in amounts of three ounces or less per product, and carried in a one-quart clear plastic ziploc bag. The FBI has determined that in such small amounts, your lipgloss and deodorant pose no threat to the well-being of your fellow fliers. Also, products of any size purchased after the checkpoint are allowed. An article in USA Today has a rundown of the new rules:

• Liquid and gel toiletries in 3-ounce containers or smaller are allowed if they are in a clear plastic, quart-size ziplocked bag.

• Up to 4 ounces of some items are permitted in carry-on bags: eye drops, saline solution, non-prescription medicine and personal lubricants.

• Larger bottles of liquids and gels from outside including shampoo, suntan lotion, creams and toothpaste are allowed only in checked baggage.

• Drinks, liquids and gels purchased in airport stores inside the security checkpoints can be carried into passenger cabins.

• Baby formula and medications are allowed but will be inspected.

• Lighters are banned in carry-on bags and in checked luggage, unless they don’t have fuel or are in a case approved by the Transportation Department.

• Laptops, cellphones, pagers and personal data assistants are allowed.