This deal has ended.
HomeDepot.com has this Multi Tool/Wrench Set for $5 with free shipping. This is the most inexpensive multi tool we could find by at least $2. It features an adjustable wrench plus a 6 bit screwdriver, serrated blade, file, needle nose pliers, and a knife. It comes with a 3 year warranty, so it is built to last. Most states charge sales tax.