Along the lines of Alka Seltzer for acne, a very popular tip exchanged on several beauty and skincare forums is the "aspirin mask:" crush 3 or 4 aspirin tablets in the palm of your hand, wet them with just enough water to make a slurry out of them, and apply like a mask (it won't be completely even and it won't dry; that's ok). Leave on for a few minutes, then rinse off. The key is to use uncoated aspirin so it will dissolve right away. Usually that also happens to be the cheapest generic store brand. This concoction is hugely popular for all types of skin, it works somewhat like very mild dermabrasion and the price can't be beat.

I heard about the hairspray on ballpoint ink trick in the past. Milk is another substance that will remove ink from fabric. With any of these things it's a good idea to test on a concealed area first if you are trying it on a delicate fabric (or leave it to a professional if the garment is both delicate and important!).