Step 2: On a cutting mat lay one layer of base fabric out. Begin pinning your lace at the bottom edge. And then pin each strip every one inch-adjust this pending on your lace-I cut as I went along over hanging it a little bit in case when sewn I used more than I thought given the t-shirt can stretch. Do this all the way to where you want the top to be + a quarter inch for folding over -you don't want the base fabric to show so you will be folding the lace over a quarter inch.
Step 3: Repeat with second layer.
Step 4: Sew the strips on. I used a zigzag stitch to ensure I caught the edge. This will also help avoid the stitch breaking if your skirt is tight when you put it on. Zigzags do not break while a straight stitch will! I started my sewing at the bottom moving on up just as I had pinned the lace on.
Step 7: Sew them together- I again used the zigzag stitch. IF you want a zipper in one side you need to do that now. Zippers are still scary to me, so my advice would not be helpful. Take a deep breath, watch a youtube video or two and Go for it!! You can do it--you can only get better!