I tend to make throw size since most of mine are comfort quilts. Usually around 56 x 72 but depending on the size of the pattern blocks I decide to make. I have also been making quilts for kids this year and they range thru all sizes because the kids are all sizes and ages.
I have made a few placemats but smaller things are not usually of interest to me. No one I know actually uses placemats, lol, or I would make more of them. Like others, I don't want to make something that will sit in a drawer or closet.