Retail same-store sales declined 0.6% in October for about 40 retailers reporting monthly results today, TNS Retail Forward reports.  October’s result is down from a 1.3% sales-weighted composite increase reported last month and down from the 1.7% increase reported in October of 2007.  “Shoppers are focusing on necessities and on finding the best deals as they cut back their spending.  And that will continue through the holidays,” said Frank Badillo, Senior Economist at...