.As a backpacker, I am always trying to figure out how we can enjoy our trips as much as possible. I am not an ounce counter but I also don't want to go any heavier than we currently carry (about 25 pounds for me, including water and my camera equipment, and 17 pounds for my wife). For me, if we could shave a few pounds off, it would leave room for us to bring a couple of luxury items. As an example, I have a degenerative spine disease and sitting awkwardly without lumbar support can be painful in camp. Though I have scoffed at them previously, a couple of the tiny lightweight chairs would go a long way toward making our offseason trips more pleasant since we could set them up in the tent for playing cards, etc. when the sun has gone down at 5 p.m. and we have 6 hours 'til we are ready for bed. To make that room in our packs, despite how much I love them, I would replace our Big Agnes Encampment 15 bags with an Enlightened Equipment Accomplice (20 degree, 900 fill, regular) to save about 4 lbs, allowing some room for those chairs and still saving a couple of pounds while we are at it.
Second item on the wish list to replace would be to upgrade our tent to a double-wall tarptent-style setup, which would offer us a lot more room than we currently have, and would save weight, too.
So, fellow hikers and backpackers, what piece of gear would you replace in your setup, and why?
Other than being positively palatial at camp for one person, though, I could see where that would get old quickly. Best of luck finding a replacement that is more suited for soloing! 
