Here's the scoop on the most popular items ZDNET readers bought last month. We've tested every product on the list.

Available starting today, Wireless Account Lock is an option for AT&T subscribers with postpaid or prepaid wireless accounts.

My personal Costco devotion started when I had kids and moved to the suburbs (a tale as old as time). And as a commerce editor, I'm here to help you scour through the sales and find the best deals ...