what temp water are you using? I don't have any tide products so I don't know what they do. Is it a grease mark, or a tomatoey mark?

A Bar of Fels-Naptha...wet stain, rub bar over and it will disappear in front of your eyes. However if you've already washed it in hot water it may have already oxidized.

If all else fails and it is a tomato stain use Wine-Away. It is for wine stains, but I have used it with great success on other red stains.

I spot with Persil 2 in 1 and then wash with same. It has been vastly superior to the Tide liquids I used.

Thanks everyone, I forgot about Persil. I guess I will try that next. As for the water temp, first cold, then two warm cycles. It is much fainter, but it's still there. I did use a pretreater...shout. I will just wear it around the house and hopefully it will disappear one of these days.

I spray all my husband's food stains with LA's Awesome Cleaner, full strength from the spray bottle. If the spot is extra terrible I spray with the Awesome, then drip on a little blue Dawn, spray more Awesome on top, then agitate in a little with a brush. That's the best I've got for stains.

I've had luck with Shout in the squeeze bottle with the brush on top.

Shout in the spray bottle.