Ivory soap slogan "99-44/100% Pure" was cleverly invented by Harley Proctor who with the help of chemists determined that Ivory soap was only 56/100 pure. Proctor simply subtracted 56 from 100 and came up with "99-44/100% Pure".

Over one million Pet Rocks were sold in 1975, makine Gary Dahl, of Los Gatos, California, a millionaire. He got the idea while joking with friends about his pet that was easy to take care of, which was a rock.

Studies have shown that the scent of Rosemary can help in better mental performance and make individuals feel more alert.

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