It never fails, the first time I wear something new that is white, I get a stain. Now I don't need to worry. The Clorox Dual-Tipped Bleach Pen is the answer to my prayers. This gel pen is small but mighty. It has a narrow tip at one end and a thick tip at the other. It can be used on any white clothing as well as on clothing that has white stripes or white areas.
You just shake the gel pen, remove the lid from the end that best fits the stain and just rub the stain with the tip until the stain disappears. I also keep an extra bleach pen in the kitchen near the sink to take care of stubborn stains on my countertops from red kool--aid and similiar red dyes.
I recommend you add this item to your grocery list, it will be the best $3.99 you ever spend. Just remember it is a bleach pen and not safe for colors.