I use a hammer. 'Gently.'
I can't reuse them more than once or twice, but my refills never leak. *g*
What kills me about this is that the refills print better than brand new cartridges. Why is that?
Yes, this does mean I'm printing out what I have of The Stratford Man. I'm going to have to do a paper edit anyway. I may as well print it out in chunks instead of all in one mind-boggling three-ream extravaganza.