Of course, you could buy a book (shock, horror):

Off my shelf:

Hanson, Mark, Alternate Tunings Picture Chords (Accent on Music).
Sandberg, Larry, Chords and Tunings for Fretted Instruments (Oak Publ.)
Acoustic Guitar, Alternate Tuning Guitar Essentials.
Bennett, Joe, Guitar Tunings to Go (Wise Publ.)
Mann, Woody, Gig Bag Book of Alternate Tunings for All Guitarists (Amsco).

All of these are pretty good. The only one that I had to scrApe around for was the Sandberg.

yours, Peter T.