That tell-tale yellowing under the arms, or the stiff, discolored collar – sweat stains are a common frustration for anyone who wears shirts. Whether it's your favorite casual tee or a crisp dress shirt, these marks can quickly diminish a garment's appearance and even its lifespan. You've probably wondered, "How to remove sweat stains from shirts?" or "Can I really get rid of sweat stains effectively?" The good news is, you absolutely can! While it might seem like a losing ba