I've been working on our backyard. We have a raised bungalow with a walkout from the downstairs level and a large deck off our upstairs walkout.
There's a sitting area downstairs and also a hot tub under the upper deck, this is the main area I've been playing with. I've added a bunch of solar "firefly style" string lights under the deck/above the hot tub. Then I bought some larger ones (or at the stuff to make them w/mason jars) to spread around the rest of the backyard that isn't covered by the deck to tie them together.
Similarly, we bought new indoor/outdoor curtains for around the exposed area of the hot tub, the old ones were like a dull tan that I hated but were the only local stopgap options. New ones are navy/white stripe. I've been looking for a patio umbrella to match it and again bring it all together but so far every navy is a bit different.
Also doing a whole bunch of grass seed, fertilizer etc on both front and back. Front grass didn't come back after the winter for some reason. Back grass has been a mess the entire time we've lived here (9 years) thanks to my two big dogs playing and doing their business on it. Will never be perfect, I'd settle for not embarrassing.
My wife has been doing the spare bedroom, it's freshly painted, new painting, new wood structure thing she's making from leftover hardwood floor, new hanging bookshelf etc...
We have her sister from England and her family staying with us in three weeks and then her brother from England and his wife and another couple staying with us in July but basically we do a project a year anyway.
Year 1 - Buy House
Year 2 - Finish Basement - builder did stairs and one bed/bath and hall, we did the main 20 x 20 ish living room area
Year 3 - Interlock brick to expand front driveway
Year 4 - Expand back deck (came with an 8x10 builders deck and no stairs)
Year 5 - Expand back patio (lower level)
Year 6 - Fireplace in lower level
Year 7 - Hot Tub - probably the one that was most impulse and adds no value but we use it a lot
Year 8 - Kitchen projects - backsplash, chalkboard wall, all new light fixtures upstairs
I'm probably forgetting some but I

our house now, it's basically exactly how I want it. And now that it's almost ten years old, I'm sure everything will start breaking.