If you buy a lot of used books online, you are bound to receive a book from a careless seller that reeks of cigarette and/or cigar smoke (undisclosed in the listing, of course). Remedies abound in the Internet, but one of negligible risk that I've tried involves sealing the book in a bag with a small bowl (6 oz. or so) of baking soda for about two weeks. I received a particularly egregious example in the mail recently, and the bag & soda cut the offensive stench down to almost nothing.
Does anyone else have any tried and true methods to share?