I am a big fan of StazOn Ink in Jet Black. It stamps a nice, clean, crisp image. To keep your pad in ready to stamp condition, I find that a couple of things must be done with these type of pads. Jet Black, or whatever color is your favorite.
One. Always store your pad upside down. The ink will always be at the top when you need to stamp. it will last a lot longer too.
Two. Keep the plastic ‘shield’ that comes with the pad. Keep it on the pad when not in use. And, to keep the shield ‘out of sight, out of mind’, place Diminsionals or Glue Dots on the top of the shield, so that it adheres to the inside top of the case. That way, you never have to worry about taking it off or touching it to put it back on.
As a side note,with my first StazOn Ink pad, I did not know you were supposed to keep that ‘shield’. I tossed it out after opening the pad. My pad dried up rather quickly.