Best Buy: HP - x3000 Wireless Optical Mouse - Black $7.99

Today only you can order a highly rated wireless mouse for only $7.99!
Shipping and store pick up are both free.
It's normally $25 and has some great features, from the website:

• Optical technology
  For pinpoint accuracy on almost any surface.
• Scroll wheel
  Lets you easily navigate documents, Web pages and more.
• 3 buttons
  Offer simple execution of commands.
• Ambidextrous design
  Enables comfortable left- or right-handed operation.
• Up to 12 months of use
  With the included AA battery, so the mouse is ready when you need it.