Remember all of those times you had to throw out perfectly good and fresh water? Or what about the times you chose to chug down an entire bottle just to get it emptied for security and then spent your whole flight in the tiny airplane bathroom? Yeah, neither of those situations is ideal. But say bye, bye to those inconveniences because we've found the most fantastic loophole out there.
Just stick your water bottle in the freezer the night before your flight. Frozen beverages aren't liquid and are therefore allowed through security.