'Round these parts, the bag bitch is known as the "mule".
We had a real reliable mule (and cameraman) when one of us broke his wrist (playing ultimate frizbee, no less), and couldn't do much parkour, but still came out. Now we have no regular mule!

Too bad none of us have a g/f anymore who will tote along, haha! (No offense, ladies. Please don't hit!)