Lining a simple skirt
You can line almost any garment, even from a pattern that doesn't include a lining. If the construction is simple (few pieces), use the pattern pieces to cut a lining and add it as a separate layer. For example, if you want to line a wool skirt, cut lining from the front and back pieces, construct the lining separately (no pockets), and sew it along with the skirt (wrong sides together) into the waistband. Make the lining about an inch shorter than the skirt so it doesn't show.