Buy.com offers the Monster Digital Outlets-To-Go 3-Outlet and USB Port Power Strip, model no. OTG300, for $9.99 with free shipping. That's the lowest total price we could find by $6 (apart from the deal below), although we saw a similar one for $1 less in September. It features an integrated USB port, three AC outlets, compact design, resettable circuit breaker, and more.

Of note, Amazon has it for the same price with free shipping for its Prime members.