OK so before I tell you how to grab this freebie I just wan to say kuddo's to the ad people at O.B. because the first thing that popped into my head when I saw this was .... "Keep it simple and set yourself free. Just try O.B. and you'll see." Did I just date myself, that ad might have been a while ago.
Anyhow you can grab a free O.B. sample here. If this is not quite up your alley these make great donations to your local shelters.