I wouldn't use the baby oil/mineral oil as a pre-shave either. I tend to get good results with a thorough wash and a hot towel before applying lather.
You can still put the mineral oil to good use. Dunk your blade in the mineral oil after you finish shaving, then gently dry it. The oil will prevent soap scum and minerals in the water from adhering to the blade, making them feel smooth for much longer. I'm on my fourth use out of the same blade and with this trick, it still feels like new.
You can still put the mineral oil to good use. Dunk your blade in the mineral oil after you finish shaving, then gently dry it. The oil will prevent soap scum and minerals in the water from adhering to the blade, making them feel smooth for much longer. I'm on my fourth use out of the same blade and with this trick, it still feels like new.