Gotta have a wah, dude! (Well, I think so anyway :)). If I could only have one toy to add to the guitar+amp, it'd definitely be a wah. Egregious and flagrant wah abuse always pricks up my ears when I'm listening to music. :)
I remember on one of the first demos I was recording, lo! these many years ago, in some studio in Boston, and when it came time to overdub some lead I thought, "Gee, I oughta back off on the tastelessly over-the-top wah blasting and show some mature restraint."
Then I thought: "Wait, this is my demo, and need please no one but me! Let there be wah!"
And there was, and it was mighty fine. Or I liked it, anyway :twisted: