There are coupons on some 8 packs of Actimel inviting you to recommend Actimel to 3 friends so they can try it free. You need to buy a pack with one of these coupons as it contains a 7 digit number. With this number, follow the link and then recommend 3 different e-mail addresses (yours or your friends'). You will then receive an e-mail with a link to get your voucher. I discovered that you can then print each voucher twice from any one computer so 3 vouchers printed twice is 6 vouchers for 8 bottles each = 48 bottles. I have now run out of computers but in theory you can keep printing them on as many computers as you like! But there's only so much L.Casei Imunitass a man can take!
Incidentally the vouchers are valid till 2008, its just the applications that need to be in by 9th Nov