The USNA 95
The USNA 95 is billed as the smallest universal power adapter on the market. It is not hard to believe those claims when you consider that it is only about four inches long.
On one end of the power "brick" there is a USB port for charging your 5 watt USB devices. This means that you won't be able to get power to that iPad you have been looking at, but you should be able to charge just about everything else.
The other end of the device has a port for the wall plug. Now, to some this may seem like an awkward setup, but in reality it is quite smart. One of the big issues with many of today's chargers is that the hard wired cables become damaged over time and use. By making both removable, they eliminate a source of failure.
The back is where all the technical information resides along with all of the endorsements, warnings and anything else that the manufacturers have to tell you, but most consumers ignore.
Speaking of specifications, I suppose it is a good idea to include them here.