For every woman trying to strike that impossible balance between work and home-and pretending that she has-and for every woman who has wanted to hurl the acquaintance who coos admiringly, \"Honestly, I just don\'t know how you do it,\" out a window, here\'s a novel to make you cringe with recognition and laugh out loud. With fierce, unsentimental irony, Allison Pearson\'s novel brilliantly dram…