Ink stains: some sort of alcohol based solvent, or even regular rubbing alcohol. Most fountain pen shops sell good stuff that will work on ball-point ink, fountain pen ink, etc. I recently got a nasty ink stain out of the cuff of a white T&A shirt cuff. First, you place paper towels behind the stain and apply the alcohol with another paper towel . . . the ink will want to spread, and the dry paper towel beneath the fabric will catch that . . . keep changing the towels. If this doesn't work, soak the offending part of the garment in the alcohol solution for a few hours, then launder. This is also helpful for getting rid of that red pen mark that Neiman's Clearance Center uses.