As seen in Simply Knitting
Finish off your knitting with this straightforward cast-off technique.
 Step 1Start by knitting the first two stitches of the row as normal, but don't go any further along as you usually would. |
 Step 2Insert the left-hand needle through the first stitch, as shown. Lift this stitch over the other stitch on the right-hand needle and over the needle point. |
 Step 3Knit another stitch so you have two on the right needle. Lift the first stitch over the second, then repeat steps 1-3. |
 Step 4When you get to the last stitch, cut the yarn about 6in (15cm) away, feed it through the loop and pull through firmly. |