The easiest way to take 20 percent off a price is to multiply the original price by 0.8. This will give you the price after the 20 percent discount has been applied. For example, if the original price is 80, which is the price after the 20 percent discount.

CR shopping editor Samantha Gordon likes to use Honey, a free tool that you can download on any browser. Once installed, it will automatically seek out discount codes and apply them when you're purchasing a product online. "It's a huge time-saver," she says.

Twister moves dance game appeared in 2004. A clever take on standard Twister, Twister moves allows four opponents to show their dance skills on four separate dance mats, each adorned with non-traditional Twister color spots.

Each player places one foot on the yellow circle and the other foot on the blue circle closest to his or her end of the mat. The third player faces the center from the red-circle side of the mat, placing one foot each on the two middle red circles.