Boy, what a loaded question.
Do I hang my own art in my house?
2 Part answer.
All the art I have [on hand] is hanging in the studio. Done or in process...it surrounds me every day.
One piece of mine hangs in the house. It's the first "mosaic portrait" and a self-portrait. My husband is attached to it and won't let me sell it, although it has been in a few shows from time to time. A few acrylic floral paintings on the wall I did...mostly experimental stuff. And several pieces of needlepoint I designed and stitched when that was my job.
So if there's only a few of my pieces hanging in the house...what else is on the wall?
Plates. A ton of plates. A ridiculous amount of plates.

There's the antique Royal Doultons [for the Anglophile in me] a collection of Royal Copenhagen Christmas and Mothers Day Plates, Majolica, Faience, Talavera, Art Deco, Ethnic, some hand-painted, some decals... all have special meaning to me.
They're gifts, travel souvenirs, family heirlooms. They're old, they're new...oh, I think I might have painted one or two.
As for Art...
There are large Maxfield Parrish prints. Photographs, wood cuts & prints purchased from galleries and art fairs, a painting of my grandmother when she was a baby in Czechoslovakia. Some framed posters from the past. My favorite is this crazy painting of a ballerina in a off kilter, sand-blasted frame. It's crazy. It has to be from the 50's but I think my Mom bought it at a yard sale and it's one of those unknown things. I might have to take it to Antiques Roadshow someday.
But, mostly plates. I guess I collect plates.
Oh yes, there is a poster in the bathroom of a lighthouse...hanging over the bathtub. It's holding a space for a piece I was working on, but sold it [that's good] and I still think it's fun since the whole bathroom floor is supposed to look like water.
Almost every wall is covered in art of some sort...just not so much mine!