I've been making quilts for 40 years, and guess what my favorite project has been...
http://kalamaquilts.blogspot.com/2008/12/napkins.html
I have an stack about about 60, use 3 or 4 a day, and every single time I get one out or fold them coming out of the dryer they make me smile. The size I made are completely sufficient, but they 'feel' scant. If I ever do more I'll make them 2" larger.
Great projects on this thread!