This is kind of a minor thing, but I've thought for a long time that it would be nice to be able to trim trailing spaces from the end of all of the lines. It kind of gets out of hand for me sometimes.
Marco - Yes - your assumption is correct. Sorry about not being clear. I usually think of it when I'm in the program window and the horizontal scroll bar is getting really long.
Arnoud - good point. I hadn't thought of the problems that removing spaces inside a multi-line string would cause.