The TSA has removed the size restrictions on popular items taken on trips, including breast milk and baby formula.

Most travelers know you're limited in what liquids you can bring on a flight, but may not know the exact numbers off-hand. The TSA's 3-1-1 rule can help.

In the U.S., TSA requires all liquids, gels, and aerosols in carry-on bags to be in containers of 3.4 fluid ounces (100 milliliters) or smaller. These containers must fit into a single ...