I just tripped over this pretty cool idea for an easy to make, easy to travel vocal booth while doing my quasi-daily browse of MAKE’s blog:

See this article for details.
I’m not sure what’s more frustrating, that I didn’t think of this or have one handy on any of the countless shows I’ve worked on where I’ve had to do on-site VO recordings at the theatre, or that I had two or three of those collapsible containers in my old apartment, and I’m pretty sure I got rid of them when I moved last fall! (He says, contemplating digging through boxes stored under the bed to be sure…)
(via MAKE)