Best Buy offers the PNY 4GB Attaché USB 2.0 Flash Drive in Grey/Black, model no. P-FD04GHSP-FS, for $1.99 with free shipping ($0.50/GB). That’s $2 under our July mention and the lowest total price we’ve seen. (It’s a current low by $10.) Sales tax is added where applicable with free custom t-shirts sent to the first 1000 customers.
Note that there is a limit of one per customer.