RE: ??? for treestand packers???
A slick thing to do is to buy one of the leg/hip packs from summitequipment.com. Straps around your waist like a regular fanny pack, but instead of having the main compartment hanging off your lower back, it has 2 bags/compartments, each one hangs off the side of your hips, alongside your outer legs. It has enough room to carry anything a bowhunter needs or wants, and doesn't interfere with a stand hanging on your back while walking to your spot.