Apply Oxiclean powder on the ring around the collar, so the yellow ring is covered. Scrub the dry Oxiclean into the stained area with a toothbrush dipped in white vinegar (I suppose any type of vinegar will do). It will start to foam. Let it sit for 2-3 hours. Then just toss it into the wash. Works 90% of the time. It's just a modified version of V-man's amazing stain removal technique. Thanks! Thought the Gralab timer was kinda neat. I picked it up for a friend who is into 35mm photography, but he already had several.