Home network upgrade.
My laptop is a bit of a dinosaur but to replace it with something even comparable in specification would cost me well over $1000, and it still works just fine so I don't want to drop that kind of money. But it is a bit of a drag having slow internet on it - when it was new having 802.11g on a laptop was bleeding edge although naturally there are much faster standards now. Having a laptop with 802.11g limited to 54mbps, with a wireless router diagonally across the house, meant that internet speeds were fairly slow. It had never been an issue until we got fiber internet, and I'd got so used to the internet speed being the bottleneck I never really thought about it.
Anyway, thanks to a Black Friday deal I got a couple more network access points, so my primary point is a better one now, the old master is now a slave where the master used to be, and I have a nice new one sitting next to my laptop connected with a cable. When my laptop was new gigabit ethernet was cutting edge, and my laptop has it. So now instead of running at about 30-40mbps between the laptop and the internet my most recent speed test, through a VPN, clocked in at 450mbps. The internet connection I pay for is 500mbps, so I'll gladly take that.
It makes quite a change when I download a file and instead of watching a progress bar it goes straight to finished.
The access points support wired ethernet for faster backhaul but with the speeds I'm seeing I don't know I need to run physical cables between them. I spent some time looking at how I'd run from one to another, but when they can talk to each other wirelessly at very fast speeds I don't think I need it. The only question is whether to run network cables to provide physical sockets in the hope it makes the house more saleable whenever that time comes, although I suspect only a serious geek would care about that sort of thing. If I do it I'd want to leave the wires fitted loosely through holes I drilled, so it would be easy to use the existing cable to pull a new cable, if somewhere down the line we find network cables carrying 100Gbps+ or some such.