put a can of coke in when you wash the acid in the coke will take it out most of the time. Been doing it for years!
becose he stol my shirt
wash it
You can try clorox clean up. But the stains probably won't come out all the way.
Wash it with washing machine or wash it with your hand.
You don't. There is no color left after the bleach.
Apply Nail polish remover
Sweat stains are tough to remove especially if you put deodorant on your shirt. However, these days there are a lot of good products available to remove these tough yellow stains. All you need to do is apply the gel directly onto the stain, wait 5 minutes and wash normally.
place some brown paper over the stain then go over it with an iron and the heat off the iron will bring out the fat in the butter soaking into the brown paper and then wash clothes as usual
Different stains require different methods of removal. Most stains, however, can be removed using a stain remover like Shout. You would need to spray the remover on the stain, rub it in a little, then launder according to the manufacturer's instructions located on the label of your custom t-shirt.
bleach the shirt
yes. it is usually more expensive than cotton shirt.
Usually if you just wash the shirt once it washes out. If not; try oxi clean's stain booster (color safe!)