Kim Kardashian has amassed a multi-million dollar fortune but when it comes to Christmas presents it turns out the best gifts are free. The SKIMS founder - who is worth an estimated $600million - is no stranger to luxury and yet when she received this heartfelt present she declared it her "best gift ever".READ: Kim Kardashian shares the most magical Christmas dollhouseKim took to Instagram to share her utter delight at being presented with her microphone pack from her show Keeping Up with the