Originally Posted by pflum1

You can take a thumb tack, tape it to the bed of the sewing cabinet with painter tape -point up and this will work if you don't have a lot to do. You will have to figure where the center of the circle is and that is where you will put the center of the fabric over the tack. If I have a lot of circles and I am home, I use a circle attachment on the machine.
I always use a open toe foot.
If you are doing small circles, you can glue several CD together and use them as a template to sew around.