Okay, I play a lot of music in drop D and drop C tuning, which generally means I need heavier gauge (.11-.58 or heavier) strings. The problem is, drop C tends to lose that rich ringing that I love on the higher strings...
Any way, I was screwing around today when I came up with this:
CGDAEe
The C+G forms a fifth, the D+A forms a fifth, the A+E forms a fifth, the E+e is a paired octave (obviously), The C+D forms a major third, the G+A forms another major third, and all together you can get these incredibly textured ringing chords without too much work!