This amazingly informative application provides you with random tips for using vinegar in and around your home.  There are 101 tips included, examples include:

"Deodorant and anti-perspirants stains may be removed from clothing by lightly rubbing with distilled vinegar and laundering as usual."

and

"Deter ants. Spray vinegar around door and window frames, under appliances, and along other known ant trails."

Please note unless otherwise quoted use white vinegar, not malt or brown.  Use tips sensibly and at your own risk.