When driving a nail into a soft wood like cedar, there's a good chance you'll mar the wood with your hammer if you miss. Prevent these "hammer kisses" with these helpful attachments.
First, take a thin strip of wood (about 1/8" thick) and cut a small notch in it. This scrap will protect the finish of your wood project during your initial strikes.
Finish driving the nail using a nail set, which will ensure the nail is seated properly and your surface is protected.
Hand Nailing with No Hammer Kisses [WoodWorkers Guild of America (YouTube)]