You should take quick respond to solve the stains. You should cover the stain with a clean, dry and cloth that has good performance on water absorption when you find there is a stain. You cannot soak the stain in warm water. After the first step of solving the stain, you could wash it in cold water if this is permitted and clean it. Various solutions for different stains: pad the stain lightly made of alcoholic drinks (not wine) with cloth that has good performance on water absorption to absorb the liquid. And rub the stain by a sponge that has soaked in mixture of warm water and alcohol (1:1).  

Coffee and tea: soak a cloth in the mixed alcohol and vinegar (1:1) and pad on the stain lightly. And press on the stain with a cloth that has good performance on water absorption lightly.

Bloodstain: pad the stain with wet sponge as soon as possible to clean the blood. And rub with diluted vinegar lightly.

Butter, cream and sauce stains: scrape away the oily stain if it were an old stain. And then pad on the stain with a cloth soaked in dry-cleaning liquid lightly.

Egg and milk stain: rub with a cloth soaked in oil solvent first and rub with a cloth soaked in diluted vinegar.

Fruit, juice and wine stains: pad with a cloth soaked in a mixture of medical alcohol and water (1:3) lightly as soon as possible.

Ink and ball pen stains: pad on the stain with a cloth soaked in oil solvent first. And then rub repeatedly with a cloth soaked in vinegar and medical alcohol.

Lipstick, cosmetics and nail varnish stains: rub with a cloth soaked in turps or oil solvent lightly.