Just two days left on our Fourth of July sale. At 30 percent off, or just $35 a year, a one-year Slack Tide subscription can now be had for the price of about three Chipotle burritos — two-and-a-half, if you add guac. Though unlike Chipotle, Slack Tide has never been responsible for an E. coli outbreak. So there’s that to consider as well. Get some.