Retailers in the Louisville area are hoping for a busy holiday shopping season despite a slumping economy.Early bird shoppers were out in force Friday morning across the region, including Greentree Mall in Clarksville, Indiana, where Heather Hoffman is Senior Marketing Manager."We actually opened the mall at 4:00am, and we had a pajama lounge event, and definitely got some people out early. We had a few stores opening at midnight. I know that K-B Toys had about 100 people at midnight waiting to get in," Hoffman said.Retailers worried about weak sales have been offering larger discounts and extended hours this year to lure customers.