As one of its daily deals, Best Buy offers the PNY 64GB Turbo USB 3.0 Flash Drive, model no. P-FD64GTBOP-GE, for $19.99 with free shipping. That's tied with our mention from two weeks ago as the lowest total price we've seen. (It's the best deal we could find today by $5, outside of the price below.) It features an integrated cap cover. Deal ends today.

A close price: Newegg offers it for $19.49 via coupon code "EMCARNK42", plus 99 cents for shipping.