FARMINGDALE - Many people just feel like taking a nap after gobbling up Thanksgiving turkey, but there's good news for those who are eager to start their holiday shopping and beat the Black Friday crowds: lots of Long Island stores are opening their doors early Thursday night.The Black Friday frenzy is kicking off at 10 p.m. tomorrow at Walmart locations across the Island, and also at the Tanger Outlets in Riverhead. Macy's, Target and Best Buy stores are opening their doors at midnight.There has been some backlash over the extended holiday hours. A Target employee from Nebraska who says he's upset that he has to work on Thanksgiving has started an online petition titled, "Tell Target to Save Thanksgiving." The petition already has nearly 100,000 signatures.Not all local stores are following the "Black Thursday" trend. Gary Richard, of appliance giant P.C. Richard & Son, says the chain has a strict policy: stores close on Thanksgiving and all 3,000 employees have the day off.Some Long Island residents say they're avoiding the mall madness altogether this year by sticking to online deals.