I use the one mentioned above Stazon cleaner. But it is greasy to me which maybe is why it seems as though your stamps don't stick well after awhile. I always clean it with soap and water after I use stazon and have never had a problem. I think the cleaner is what I don't like about stazon but it does clean all the ink off. Soap and water takes the greasiness off from the cleaner. Then I let the stamp air dry. Kinda a pain to stamp with which is why I don't use stazon for everything, only when I need it.