http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. There is fresh evidence that people spend less when paying cash than using credit, cash-equivalent scrip or gift certificates. They also spend less when they have to estimate expenses in detail. These findings appear in the September issue of the Journal of Experimental Psychology: Applied, published by the American Psychological Association. http://www.physorg.com/news139977942.html Other Sciences Sun, 07 Sep 2008 03:45:42 EST news139977942