i found that with stazon, i had to use copious amounts of isopropyl alcohol (rubbing alcohol). be cautious with this because this can also loosen the adhesive that holds the rubber stamp onto the handle. i then brushed the stamp with a toothbrush -- making a mess of my shirt, pants and general vicinity (not to mention, subsequently, my TEETH...).

stazon is a necessity in these days of coated banknotes, but it certainly means that you have to clean your stamp more frequently!

i'd be interested in hearing other users strategies.