Got an iPhone, iPad or Touch? Own a DSLR? If you throw in an Eye-Fi memory card and download an $8 app called Shutter Snitch, you can wireless control the shutter of your camera and finally be included in some of those group photos instead of playing Richard Avedon at all your family gatherings.
The Lifehacker sourced how-to also mentions how to use Shutter Snitch to directly transfer those new photographs to your your iDevice sans USB cables. But it's really the remote shutter which has us interested, especially since we could use this affordable solution for steadier macro photos and for snapshots where a remote would work better than a timer.
There's also a tethered USB cable solution which is even more affordable for remote operations, using something called DSLR Remote Lite/Pro. At $2 for the Lite version, it seems worth trying for home studio use, but the requirement to tether the DSLR and your iOS device limits the utility for exterior/travel use.