Best money you'll spend today.
Possibly my favorite Amazon purchase.  Saw this randomly as a suggestion.  I'm someone who is on their feet for 9-12 hours a day depending on the day at work.  Was dealing with some pretty nasty plantar fasciitis at the same time.  This is great because its not one of those cheap massagers that only vibrates.  You get a pretty awesome experience with this.  I use it virtually everyday I work.
Rating: 5 stars