I also use the standard "Wal-Mart" type of folding chair (although I usually buy a couple at the local Dollar Store when they are on sale). I don't like arms and cup holders, etc. I find that using one of these, whether hunting in a natural ground blind or a pop-up, and by using a butt-warming cushion, works just great and allows me to stay seated for long periods without fatigue or butt getting sore. The cushion needs to be re-arranged periodically, but it gives me just enough added height so that I have a great view while inside my pop-up. I like having the chair back to allow me to sit up straight and not develop a sore back by constantly leaning forward. Sure, I may only get two or three seasons from such a chair, but when one wears out, it's back to the Dollar Store. These are generally light weight and usually come in a cover that has a carry strap. Also, pay attention to the legs........the area I hunt is rocky and hilly and I find that occasionally I need to dig out a small spot or two in order to have the chair sit level..........I prefer the four-legged type chair.
It isn't what happens to us, it is how we deal with it, that matters most.