shcifang via eBay offers the TOCCs 2,600mAh Power Bank Key Chain in six colors for $4.67 with free shipping. That's the lowest total price we could find by a buck and the best per-unit price we've seen. This key chain adds up to 10 hours of usable power.
Suze Orman has a huge following. But beware: The self-proclaimed personal finance expert has a track record that suggests more sizzle than steak.