How effective is using vinegar for getting stains out of fabric?

Vinegar can be effective for removing some stains from fabric due to its acidic properties. It works best on stains like sweat, coffee, and mildew. However, it may not be as effective on tougher stains like ink or blood. It is always recommended to spot test on a small, inconspicuous area of the fabric before using vinegar on the stain.