Mix the hair color remover as directed by the manufacturer. In most cases, it's just a matter of pouring the developer from bottle "b" into applicator bottle "a" that contains the magic hair remover crystals. Shake well and you're good to go.
Slip on a pair of rubber gloves and squeeze the hair color remover onto your hair. As you do, use your gloved hand to massage the color remover into your hair. Keep massaging, building up a lather as you go. Run a wide-toothed comb through your hair to cover it all with the hair color remover. You wouldn't want to miss any green, would you?
Place a plastic shower cap over your hair and sit under a dryer bonnet for the manufacturer's suggested time (usually 30 minutes). If you don't have a salon-style dryer bonnet, beauty supply stores sell these fancy little bonnets that hook onto your regular blow dryer -- and they're inexpensive, too.
Rinse your hair with warm water after the waiting period. Rinse, rinse and rinse some more until the water runs clear. Give your hair a good cleanse with moisturizing shampoo and then apply a moisturizing conditioner. Take a look in the mirror -- you're a blond again!
Don't skip the conditioner. Removing color can be drying to the hair, and a conditioner will help restore moisture.
Follow the manufacturer's directions and do not leave the color remover on your hair for longer than recommended.