Charity/comfort quilts make up about 98% of the quilts that I help to make. Our guild has a charity bee of less than a dozen quilters who made over 400 quilts this year and the year before. Since we don't get in a hurry over anything, we were even amazed at the output. I loved luvstoquilt's description of door quilts! We make these around 36" wide for wheelchair recipients. The length varies a bit. They are great for using regular WOF backs and go together in a hurry.
But we also make lots bigger quilts. Some of those are in the range of bearisgray's "couch quilts" - about 60 t0 70 inches wide and about 80 to 85 inches long. We also support Safe Child and we try not to forget that children come in all sizes!