A4C offers the refurbished SanDisk 64GB Cruzer Glide USB 2.0 Flash Drive, model no. SDCZ60-064G, for $9.95 with free shipping. That's $10 under our August refurb mention and the lowest total price we've seen. (It's also $20 under the best price we could find for a new one.) It features password protection and 128-bit file encryption, Deal ends August 31.
Note: A 90-day A4C warranty applies.