It's always my solar-plexus chakra that is blocked.
Sometimes my root, sometimes my heart, but ALWAYS my solar-plexus. I don't really know what that means -- my mom does -- but whenever I get an "eastern" massage, the masseur complains about how much work he has to do on that chakra.
I do know the solar-plexus is the yellow -- a color I can not wear, which is rather ironic.
Check out this fun collection on Artfire based upon Chakra healing.