There's a lot of talk about cola being fantastic at cleaning toilets, but cola is not the best option, according to Cobb. "It is expensive and the sugar in it helps bacteria to grow." Lemon Kool Aid may work because of the citric acid in it, but not other flavors, says Cobb. Her pick: Orange flavored breakfast drink, such as Tang. "Buy generic and buy it at the cheapest place you can find it," she says. "Don’t worry about the freshness date." Use one or two teaspoons, let it sit for a few minutes, then use the bowl brush to swish, then flush.
Denture cleaning tablets also work. "One to two dropped into the toilet and allowed to fizz do a great job," says Cobb.