As one of its daily deals, A4C via eBay offers the refurbished SanDisk 64GB Cruzer Glide USB 2.0 Flash Drive, model no. SDCZ60-064G, for $19.99 with free shipping. That's $2 below our mention of a refurb from two weeks ago and the lowest total price we've seen. (It's also $11 under the best price we could find for a new one.) It features password protection, 128-bit file encryption, and 2GB of secure online storage. Deal ends today at 4 pm ET.

Note: No warranty information is provided.