Gary covers a range of topics, from plumbing issues to home maintenance. Gary takes calls from listeners, including Gary in Saint Louis, who's experiencing problems with his toilet, and Mary, who's concerned about her daughter's glasses getting etched in the dishwasher. They also discuss the importance of regular maintenance for water tanks and the benefits of using a humidifier to control basement humidity. Additionally, Gary shares tips on how to eliminate odors in cars and recommends products like Odor X it Eliminator and Jaws Just Add Water System.