Amazon offers its Amazon Prime members the Transcend 16GB microSDHC Class 4 Card with Adapter, model no. TS16GUSDHC4E, for $14.99 with free shipping ($0.94/GB); newegg charges the same. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping adds $8.06.) That's and the lowest total price we could find for a buck; however, most places charge $20 or more. It features a full-size SD card adapter.

Also available at Amazon is the Transcend 32GB microSDHC Class 4 Card with Adapter, model no. TS32GUSDHC4E, for $31.99 with free shipping ($1/GB). That's another price low, although we saw it for $7 less earlier this month (since expired).

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months. (Note that there's currently a wait list for the Amazon Mom program.)