California\u2019s recreational pot marketplace is open for business and, already, sales are booming. Take yesterday, for example: marijuana sales jumped more than 300 percent above last month\u2019s daily average. That\u2019s according to the company Green Bits, which tracks pot sales. Even in its early days, it\u2019s becoming clear that recreational marijuana is for sale in stores that don\u2019t look much like the stores of old.