A law firm <a href="http://www.intebuild.com/index.php/stmap_55960.html?furoxone.prozac.cialis">viagra generika deutschland 2013</a>  The cost of back-to-school shopping could increase 36% from last year if students add a midprice $300 tablet to purchases, according to the Backpack Index. "We are seeing the trend of tablet-buying become more synonymous with the back-to-school season than ever before," says NRF spokeswoman Kathy Grannis.