Amazon offers Amazon Prime members the SCOSCHE flipSYNC II Keychain Charger and Sync Cable for iPhone, iPod touch, and iPad (pictured), model no. IPUSBM, for $6 with free shipping. (Non-members can get free shipping with orders of $25 or more; otherwise, shipping adds $2.98). That's $6 under our mention from two weeks ago and the lowest total price we could find by $7. This device is designed to fit on a keychain when not in use.

Of note, Amazon also offers its Amazon Prime members the SCOSCHE flipSYNC Keychain with Cable, model no. USBMM2, for $5.99 with free shipping. (Non-members can get free shipping with orders of $25 or more; otherwise, shipping adds $5.58). That's tied with last week's mention and the lowest total price we could find by $5. Designed to attach to your keychain, this mini charge/sync cable is compatible with devices that have mini-USB connections. It features one standard USB connector, one mini-USB connector, and one micro-USB connector.

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.