Tip for cold days with a climber:
Put your coveralls on the cart for padding to silence the stand, then bungee the climber to the cart. The noise is much less, and you don't get so sweaty from wearing coveralls on a long hike.
The combination of a quieter cart and being chilly with no coveralls will help you walk faster to your spot
I agree with others about stashing the cart. It stinks doing the whole trip twice when a deer is down. Just make sure you have about 20 feet of thin rope and at least one bungee, and you can haul all kinds of stuff.