Visit Myrtle Beach, TaxSlayer.com and Dale Earnhardt Jr. of JR Motorsports ​Partner For Myrtle Beach Vacation Giveaway Visit Myrtle Beach has announced a unique partnership with TaxSlayer.com, an online tax preparation and e-filing service, and JR Motorsports, the professional race team and management company for Dale Earnhardt Jr. The first promotion has begun and will involve TaxSlayer.com gifting families with an incredible Myrtle Beach, S.C., vacation, including oceanfront accommodations. The giveaway will start on January 15, 2016, and…