Well Speaking of remote shutter releases…
There was an article on Digital Photography School where the author created a remote shutter release using a doorbell system.

It is a pretty interesting concept, and a fairly clean setup.  The tutorial goes into detail on how to on how to build your own.
Please check out the author’s flickr photo [...]

A Remote Shutter Release is almost a requirement for studio macro photography. I would also argue that it is a necessity for reverse lens macro photography.  A remote shutter release is a device usually attached via a wire or done over radio that allows a photographer to remotely release the shutter there by stopping [...]