The Peroxide dip - use a shallow dish to put your peroxide in and get your stamp ready. Place stamp with stain or grime in to soak for about 30-60 seconds then, rinse and press. Only do this if the stamps are not early classics or mint state as it will take off the gum like water will. I suggest trying this on an old damaged stamp first to see how the process works. Good luck and common sense and you'll be fine!
