Caulk: Apply paintable latex caulk and smooth with a damp finger. Shims: Use thin wood shims behind loose moulding before nailing.

Crown Moulding: Adds elegance between walls and ceilings. Baseboards: Covers the joint between walls and floors. Chair Rail: Protects walls from furniture and adds visual interest.
Wainscoting: Decorative wood paneling on lower walls. Casing: Frames doors and windows for a finished look.

Home improvement stores: Home Depot, Lowe’s (pre-primed options). Lumberyards: For custom wood profiles. Online: Etsy, eBay (for vintage millwork).