Victoria Beckham had the best remedy following a "long" week of homeschooling Harper – a mother-daughter day at the spa!The fashion designer shared a sweet image on her Instagram Stories on Saturday, revealing that she and the nine-year-old enjoyed a day of pampering and relaxation.MORE: Victoria Beckham sparks mass reaction in lacy bustierPosting a photo of herself and Harper wearing white robes, Victoria wrote: "Treating ourselves to some relaxation after a long week of