What product do you use to clean the spruce top of your guitar?

To clean the spruce top of your guitar, you should use a soft, lint-free cloth. It's important to use a cloth that won't scratch or damage the finish of your guitar. You can dampen the cloth with a small amount of water, but be sure to wring it out thoroughly so that it is just barely damp. Avoid using any harsh chemicals or abrasive cleaners, as these can damage the finish of your guitar.