AT&T Apple iPhone 4 / 4S USB Car Charger for $4 + free shipping
Ending today, A4C offers the AT&T Apple iPhone 4 / 4S USB Car Charger, model no. 75367, for $3.95 with free shipping. That's a buck under our mention from a year ago and the lowest total price we could find today by $7. (For further comparison, we saw a refurb 2-pack for the same price in July.) It features a USB port.