Blood: One of the best removal tricks is to spit on it (yes it sounds gross!!). Or: Soak in water mixed with a few teaspoons salt. Or: add 1 teaspoon colourless dishwashing detergent to 1 teaspoon ammonia and 1 teaspoon water - apply the paste, let it sit on the item and wash as normal (do not use ammonia on delicate or coloured items).
Gum: Freeze the clothing in the freezer for a while, the gum will harden and break off.
Ink: Spray Elnette aerosol hairspray on the stain and run under cold water. If stain not removed, repeat process. Launder as per care label afterwards.
Coffee: Mix 1/2 teaspoon vinegar with 2 cups cold water and sponge onto the coffee stain. Repeat if necessary. Wash as per care label.
Make-up: Treat stain with rubbing alcohol and then use colourless dishwashing detergent and blot onto the make-up stain. Wash as per care label.