I'll admit it's a very only-in-LA kind of thing to stage a school mom's retreat at the beach. But, for me, that's exactly what went on last Friday. The premise: to get away, relax and bond. The result: success! Margaritas were on tap. There were enchiladas and kale salad. Both funny chitchatting and deep conversations happened. And there was sandals galore. The best of the bunch: a that everyone agreed was excellent in its very right-now-Birkenstock-likeness, but notness. Think: feminine, elegant, sleek and versatile. And bet that many of us will soon own a pair.