My teenagers are now grown and the last one left home today, so that option is no longer valid for me.
That being said, "dragging" a deer feels like it's going to literally kill me, so last month I picked up a Hawk Crawler deer cart after reading many positive reviews. It's obviously not something that you can slip into your backpack, but I must say that it is AWESOME! On Friday I shot a huge 8-point (https://castboolits.gunloads.com/showthread.php?449897-Shotgun-opener-big-8!) and after strapping the cart to it and flipping it over onto its wheels I was truly impressed. With him weighing 225-240 lbs I never could have dragged him out by myself, but I'm am pleased to say that I pulled it the entire way out of the woods without any help. Even when traversing a ravine and up a hill.
https://www.amazon.com/Hawk-Crawler-Game-Cart-Black/dp/B01D93036U