I have basically furnished our 3-bedroom, 2-bath AirBnb home from what we had, from Facebook Marketplace (a godsend), all new bedding and towels and seemingly endless packages from Amazon, Home Goods, small appliances from WalMart, and was gifted some dishes by a friend. Artwork is what we had: some paintings are from our adult children. Definitely unique and homey, even if not high-art. Not everything is the perfect colors I might have wanted, but it is sturdy and comfy. I am still adding more rugs, since we have all hardwood and hard surfaces for floors.
Edited to add: Our biggest expenditure was for brand-new composite Adirondack chairs for our fire-pit area. These have a lifetime warranty, look like wood. Definitely worth the cost for our setting. Cost: $900 for 6 chairs, and that was a substantial sale on the normal price.
Soon, I will figure out an on-going budget for upgrading; I can see that being a never-ending process for me. I also enjoy refinishing wood furniture, and have several projects (end tables and such) waiting for me.
In this photo, we have a quilt made by my sister-in-law, end table handed down by family, and a headboard made by me from the ends of our children's baby crib. Also in the room is a small desk-table I refinished, and an old wooden desk chair I got on Marketplace.
What I am still needing, and has been difficult to find on FB Marketplace, are appropriate lighting options, particularly floor lamps. Few and far-between in my area, so I will probably need to buy new. Any favorite sources for lamps?