This one is simple and effective. Use hairspray to get that archival or any black ink off your red rubber or photopolymer stamps after you've used them. It works!!!!! Spray the hairspray onto the stamp and rinse, I use my fingers to rub the ink off and repeat until the stamp is clean.
You can also get archival black or gray ink off your blocks using hairspray too! Great little back pocket tip. Try it!