Excellent post on About.com on how to get rid of peanut residue from the hands and from furniture (soap and water by far the best method).
It also points out that rinsing out the mouth does not get rid of peanut residue from the saliva – take care, those who wish to kiss peanut allergics!
They also suggest that although the smell of peanuts or peanut butter does not seem to cause a reaction, cooking or heating them releases allergens into the air which will cause reactions…