As a muddling designer I always have one or two color ideas when working on a new design, but you need more than just two. I’ve tried various pieces of color matching software in the past, but now my need for matched color ideas is combined with my love for my iPod (I am the proud owner of the most excellent iPod Classic 160Gb) in Koloroo for iPod, a free (well, careware) little tool that turns my iPod into a very spiffy color picker.

I can wax poetic about it all day, but this is one you just have to get and use to see what a great little tool it really is.
And remember, it is Careware, so you do actually have to do a nice thing for someone else as ‘payment’. I myself helped a friend dig out the foundations of his house (which gave me muscles sore enough to hinder my mouse use at the moment).