Slide a cardboard rectangle in between the sweater layers on one long side of the basket; repeat for the other three sides. (If your cardboard rectangles are too wide to insert, cut a little strip away from one long edge of the cardboard until the piece fits snugly in between the sweater layers.) Push the cardboard down firmly, until it fits tightly in each bottom corner. Place the cardboard square inside the bottom of the basket; push the corners of the cardboard securely into the corners.
Using doubled sewing thread and a whipstitch, sew the tops of the sweater rectangles closed, enclosing the cardboard in between the sweater layers.
TIP: Hand-sewing wool with regular thread can be a little tricky; the tiny knot will likely slip right through the wool. Follow these steps for securing your stitches:
1. Thread your needle; then knot the two ends of the thread together to form a loop.
2. To start a line of stitching, guide the needle through the sweater fabric where you want to begin. Hide the knot in between layers or along the inside edge. Before you pull the knot tightly against the sweater (and it pops right out the other side of the sweater fabric!), thread the needle through the loop of the doubled thread. This will hold the thread in place so you can begin your line of stitching.
3. To end a line of stitching, tie a large knot in an inconspicuous place; then take 3-5 tiny stitches over the knot and cut the thread close to the sweater fabric.
Okay, let’s finish this basket!