As one of its daily deals, Best Buy offers the SanDisk 32GB UHS-I Class 10 SDHC Secure Digital High-Capacity Card, model no. SDSDU-032G-A16S, for $19.99 with free shipping ($0.62/GB). That's the lowest total price we could find by $5. (We listed a similar card for a buck more earlier in the week, since expired.) Sales tax is added where applicable. It features a maximum read speed of 30MB/s. Deal ends today.