If your reusable water bottle has an odor, before you toss it for a new one, give it a very thorough cleaning. Fill the bottle with warmed-up white vinegar (heat it up in the microwave) and add a little baking soda. Shake vigorously. Then refill the bottle halfway with water and ice cubes and shake vigorously again. The combination of these ingredients will help break up grime, deodorize and sanitize at the same time.
ANDREWS MCMEEL SYNDICATION