Under the 2026 "3-1-1 Rule," you can take as many 3.4oz (100ml) bottles as you can fit into a single, clear, quart-sized zip-top bag. In practice, for standard-shaped travel toiletries, this usually equates to about 7 to 10 bottles. The limit isn't on the number of bottles, but on the volume of the bag itself; the bag must be able to close completely without stretching. If you use wide or bulky jars, you may only fit 4 or 5. Remember that "3-1-1" stands for 3.4oz containers, 1 quart bag, and 1 bag per passenger. For 2026 travelers, it's worth noting that items like solid deodorants, bar soaps, and prescription medications do not count toward this liquid limit and can be packed separately. If you are traveling as a family, each person (including infants) is entitled to their own quart-sized bag, allowing you to "pool" your toiletries across multiple bags to maximize your carry-on space.