I have a long devan quilt which I put on the back of chairs. It has received lots of compliments. What it really was were orphan blocks I never expected to get made into a quilt.
It has lots of hand quilting and it does draw a lot of attention.
So much can be done with about any size quilt, and a good investment of time and pennies, really.
Mariah

I don't use quilts for bedspreads. I already have pretty spreads for my beds and they fit the decor. We use quilts for snuggling and extra warmth. I have made a few bed size quilts that would fit on a double bed but they are so heavy and I don't use them much. I like the smaller ones to snuggle with on the couch and if I need extra warmth on the bed then I put a smaller quilt on top the bed. I also use quilts for table cloths. I have an odd size round table that is our everyday eat at table so I have a variety of quilts that I switch out there and then just throw in the washer like you would a table cloth.

I make many quilts for Babies in Need, Make a Wish, Quilts of Valor, of course, family, and myself.

They make great "lap quilts".....just nice to grab and cover up the lap and legs on a cold day or evening.....also a nice size to donate....I generally make 40x54" size for donating.....can be either used for a small child or a larger child's lap quilt.....easy for me to handle and uses only one WOF for backing......

I put them everywhere... This is the loft/plant shelf near the ceiling where I have my bear collection. I have one on the front door even.

People have mentioned so many good ideas!
Recently I posted a doorhanging for my Mom's apartment in a senior complex. Seasonal or themed doorhangings are also good for school, churches, and other facilities. They add interest to a décor.
I have also made handbags out of quilts about 25-30" square. The technique is a method of folding, and you start with a finished square quilt.

I don't usually make smaller quilts unless they are pre-planned gifts. Anything smaller than a full/queen is believed by a 7 lb. papillon to be hers. She tries to drag them to her special corner in the sewing room. !!!!Try being the key word here. LOL

Around 30 x 40" would make a nice quilt to cover someone's lap, knees and legs that uses a wheelchair.
I made two for a young man whom is wheelchair bound. His parents really appreciated them.

36" x 45" for Lap Robes for Nursing homes. Donation Quilts for Women and children Shelters or Foster Homes, Baby size Quilts donate to Hospitals for new borns.. or for church Charities shops...

I am involved with Quilts for kids and that's the size we use. Great size for a baby or toddler quilt.