There have been a lot of good responses here. Lots of folks with different styles and methods, sharing what works for them. I like threads like this.
But now I'm going to take it out in the weeds a bit and hopefully not derail the thread, but instead offer perhaps a different perspective.
Kino is a good guy, very knowledgeable, I have talked with him on the phone before. About an hour one night while I was spinning up a call. In his response to this thread he said, "The key to calling and killing big numbers is covering a lot of ground, and to do that you need to be fast and light." Now, that is a totally correct statement. I would not disagree with that a bit.
AND, IMO, he is totally correct on the breaking down/adjusting the tripod on stand too. Mine is pretty much set and forget. I carry it/leave it extended to my standard setting unless I really need to change it for some reason. But I digress.
At any rate....
Something I know I forget sometimes is that not all of us have the same goals out calling. For sure I have gone through different phases. Maybe for some it is killing numbers or calling contests, maybe it is enjoying time with your friends, maybe it is calling the predators on your terms, or taking out problem animals, whatever. Some folks like me are minimalists. Some guys are gear junkies and love that aspect of it. No right or wrong answer as far as that goes. Some folks love stuff and don't mind carrying it. As I get older I prefer to keep it simple and travel light. At any rate, take the aspects of calling that you enjoy and focus there, and tailor your system to it.
Right now my focus is that I like making calls and using them. Trying new boards, sounds, designs. I like the time out with my partners, talking as we go stand to stand. Most of my partners are guys I have known a long time. I really like killing coyotes too (obviously), but it isn't a numbers game for me. I really like targeting problem animals, doing ADC work whenever those issues pop up.
I guess what I am trying to say is to evaluate your goals and the reason you go calling. Find the aspects of it that you enjoy. Tailor your gear and your system to that and then find an efficient way to carry the things that make the hunt enjoyable/easier/more successful for you. Those things will be different for all of us. Some basics we all need. Rifle, tripod, batteries, ammo, calls, maybe a scanner. Beyond that most of it is a tradeoff in some aspect. Does this piece of equipment I am carrying add enough value to my system to be worth lugging it back and forth? I tend to make sure I have all the little things like a few extra rounds of ammo, a backup mouth call, extra thermal and flashlight batteries, and probably a drag. Those can just go in a coat pocket and stay there. They don't take up much room or weight, and if you need them, you generally really need them. But bigger things that are heavy or bulky, for me they REALLY have to add serious value for me to drag them around. That is just my style though.
Something I have used in the past, and still do when I am serious run and gun or out chasing pigs, is a battle belt. It goes on and off real quick. It will have pouches for 2 AR mags, flashlight pouch, cable drag, pouch with extra batteries for all electronic gear I may be carrying, plus a fixed blade knife and latex gloves. It takes 10 seconds to put on and pretty much has any small accessories I may need in it. It may be an option worth exploring.