Arris Sling BagWhen you're stepping out into the world, heading for a new adventure, it feels great to be properly equipped. But it's easy to go overboard and wind up frustrated at having to lug around a heavy bag all day. Enter the Arris Sling. It's small enough to limit your options (goodbye, laptop), but generously proportioned to accommodate more than you may imagine (hello, water bottle). It's the one we reach for on a short hike, when we're visiting a museum,