MM> From memory,  was there any triplet as memorable and useful as the
 MM> basic 3-4-5 ?  AFAICS,  3-4-5 has an honourable history in the
 MM> buildig trade that stretches right back to
 MM> ancient Egypt and beyond...

I've been known to use 5-12-13 when its an advantage to do so.  Of course,
everyone on the crew looks at me funny when I do that.  And then won't go
to lunch with me anymore.

---