Directions
This works best with a sandbag or can be used with any kind of heavy item that has a soft exterior that doesn't shift the weight around when moved. Grab the sandbag using a handle on each side, squatting down. Keeping your core tight (!!), lift the sandbag and flip it to one shoulder. Flip it back down to the ground, barely touching the floor, bending your knees. Repeat the same motion to bring it to your other shoulder.