As to my own biggest changes in recent history... getting a dishwasher. Took some effort since the plumbing in this rental place wasn't set up for, but with some help we could make it work. It's a major quality of life improvement, even when half my stuff doesn't go into it. I'm also noticing that I'm adapting my usage of certain stuff; no matter how much I like my wooden plates they only get used when they are really needed nowadays, just like I've rediscovered my stainless pans over my deBuyers. No matter how much I like them, inability to get dishwashed isn't exactly working in their favor.
Other recent purchase was my cutting board upgrade to a 60x40 one (from a 45x35). Mostly got it because it was on a really nice sale, but it's making more of a difference than I expected. Simply having more space means I spend more time simply cutting instead of 'moving stuff' around on/off the board due to running out of space.
Other than that I do periodical small changes where I reorganize stuff or put stuff in other places to try and optimize efficiency. Still trying to find that sweetspot within the constraints I have (rental place, no budget, limited energy to fix things myself). But the problem is always that I'm far better at creating a mess than cleaning it up, so as a result no matter how much work surfaces I have they always tend to get filled with something, whether it's just the mail, administration, groceries, or other stuff I'm working on.