Today on the First 40 Miles, leaving a trail of bread crumbs didn’t work out so well for Hansel and Gretel, so is there a better way to mark the trail that won’t conflict with Leave No Trace principles?  Then Josh will share the top 5 things he does on every backpacking trip.  Next, we’ll share a way to text, even when you’re days from a cell tower.  For today’s Backpack Hack of the Week, a ridiculous zero-gram trail game that will keep you entertained for hours.