Here's Heloise's idea for ink stains:
Ballpoint-Ink Stain
THEN: Hairspray
NOW: Rubbing alcohol
Ink formulations, fabrics, and hairspray ingredients have changed today. To get rid of the ballpoint ink from clothing you launder, place the garment on a towel stain-side down. Lightly dampen a cloth with rubbing alcohol and gently dab (do not rub) the stain.