I bought a little lightweight folding table (19" long?) at Walmart that I take to Camp Retreat with me for sewing. I have very short legs and sitting at a dining table is just too uncomfortable for me. You can fold it up and slide it under a dresser or bed when you aren't using it.....better than nothing.
My first "sewing room" was a closet in the bedroom that had shelves for my supplies on top and to the side. If I needed space behind the machine, I had to pull the folding table out.