A couple years ago, my husband and I joined my sister, my brother-in-law, and a couple other friends for a backpacking trip in the Dolly Sods Wilderness in the Monongahela National Forest. I’m not usually the backpacker type, though I’ve done my share of camping over the years — mostly in my teens and 20s. Not in my mid-30s after having two kids. But, it was a trip planned for my sister’s 30th birthday, and I’m typically game for anything (and in fairly decent shape at the time, running regularly). So I figured, why not? How difficult can it be? When…