Stains suck, especially when they are on a favorite shirt or a brand new clothing item. Club soda is always something grandmothers say to use when you get a stain. Warm water always helps, right when you get a stain rip that shirt off and run it under the tap, or dab it with a damp cloth. Then there are the detergents and sprays, Oxi Clean, Shout, Tide, Bleach, for whites only, etc. Some work, others don't, just be careful with foods and drinks and you should be good.