Beth, so sorry to hear about the complications of your knee and foot. Injuries definitely put a cramp in anybody's style!
I work from home, as you know, and most of the outfits you see me post are "work from home" outfits -- with others (appearances, city visits, outings, etc.) also mixed in .
I used to wear yoga pants and an old sweater or tee. For years. And I felt blah.
Then I lost weight (and needed new clothes) and found YLF and started really thinking about how I want to look and feel.
My first attempts were mostly fails -- I didn't really pay attention to the life I truly lead, so I was buying the wrong stuff.
Over the years I've learned: It needs to FEEL as comfortable as yoga gear (for work at home) but LOOK a little bit fashionable.
It's nothing special -- my typical outfit in winter is a knit (often a turtleneck) layered over a camisole, with jeans (BF or skinnies), a belt, small stud earrings, and socks with slippers. If the sweater does not have a turtleneck, I'll often wear a scarf in mid-winter. If it is really cold I might layer a hoodie or pullover on top of that (or wear a shirt with a pullover layered).
I rarely wear my shoes in the house -- only occasionally if we have guests and are entertaining. That's why BF jeans and skinnies are a good bet. I don't have to be worrying about dragging hems.
In summer, my uniform switches to shorts or a skirt, and a woven top, usually sleeveless. Plus bare feet.
I don't wear a lot of makeup ever, but I typically put on my concealer, lipstick or balm, and fill in my brows a bit even while at home.
If I go out to do errands, I might just add a topper (or toppers -- depending on weather...layering up.) OR I might switch from skinnies to flares.
If I meet a friend or Mr. Suz in the afternoon or evening for food or entertainment, or if I go to a professional appointment, I'm more likely to "dress up" in smart casual. That might mean -- trousers vs. jeans; a blazer or leather jacket; a dress or skirt.
But I don't have "at home" vs. "out of the house" clothes, for the most part. I'll wear the same jeans and sweaters at home and out -- I just tend to add that third element if I am going out, and I might combine the pieces differently.
I tend to wear gear if I am gardening or doing something messy at home. I do keep a few older pieces of gear for those kinds of jobs. I also wear old but still decent cardigans in lieu of a light robe.