The Fourth of July has come and gone, and for many families, summer has reached its sweet spot. The pools are open. The bikes are out. Library reading logs are filling up. School feels far away. At least, that’s the nostalgic version. And yet, for many children in the city and suburbs, summer doesn’t look like that at all. Children of working parents, by necessity, are often enrolled in camps that run the same hours as the school day. We empathize with those parents and exist among their ranks. When your job doesn’t come with a summer break, it can become difficult to give your kids the kind of laid-back experience many of us enjoyed in our youths. This is doubly true for single-parent households. But as parents scramble to make it all work, here’s something to remember: Kids don’t need every hour of summer optimized. Some boredom is one of the healthiest parts of childhood. That belief is made visible in its purest form in the emergence of the “’90s summer,” an effort to liberate today’s tightly scheduled children. What is a “’90s summer,” you might ask? For those