I admit, my placemats are almost always oval, my potholders almost always have rounded corners, and I avoid sharp corners on purpose. Why? I don't want to deal with binding and mitering corners. I am pretty good at it by hand, but never seemed to master the mitering by machine. Well, guess what? I found a blogger who has done a very nice, simple tutorial about sewing bias tape around corners:
"Smashed Peas and Carrots
I'm absolutely going to try her method the next time I get brave enough to do corners. I made my daughter a Grandmother's Flower Garden quilt when she was younger and hand stitched bias binding all the way around, mitering inside and outside corners as I went. Jeesh. If only I'd had the internet or a friend to teach me how to do it by machine!