I use a pre-shave oil to do my touch-ups. Works really well, not least because I can see clearly where I need to remove the hair. However, I do notice when I am cleaning up that there are hairs stuck to my razor blade. They won't rinse off because of the oil, so I am forced to remove the blade and manually wipe it - dangerous! Does anybody have any suggestions? I presume that an alcohol dip would also not solve the problem.