Here's a super easy method for a cute glasses case I came up with, which you can complete in about 10 minutes.
Here's what you'll need:
one piece of outside fabric, 7" wide by x 9" long
one piece of lining fabric, 7" wide by 9" long
one piece of cotton batting, 7" wide by 9" long
Put a few pins along the top 7" edge, and sew 1/4" seam. Notice I'm using my walking foot.
Now open the layers, and fold back so the right sides are facing out and press...
Now fold the lining back over the outside, about 1 1/2" and press. I know, I seriously need a new ironing board cover! Please ignore the stains ~
Next, fold in half lengthwise, inside out, and pin.
Now sew together down the side and across the bottom, 1/2" seam.
Here's where you have an option. You can simply trim the seams, clip the corners and call it a day. But if you're worried about the unfinished seam (which is hardly noticeable btw) you may finish it very easily like this:
Fold the lining fabric back on one side before you trim, then whip stitch it over the seam.
Turn right side out, and push corners out with a chop stick or similar tool.
Seriously, this took about ten minutes to make. Well... eleven if you count whip stitching 2" down the seam.