<p>For those of you in the Visual Studio environment, how do you feel about wrapping any of your code in #regions?  (or if any other IDE has something similar...)</p>

I use
Textmate
(Mac only) which has Code folding and I find it really useful for folding functions, I know what my "getGet" function does, I don't need it taking up 10 lines of oh so valuable screen space.
I never use it to hide a for loop, if statement or similar unless showing the code to someone else where I will hide code they have seen to avoid showing the same code twice.