Disclaimer: a previous question already covers Arcane and Divine Spells vs Massive Damage, so let us concentrate on more mundane ways.
Hey I Can Chan suggested that a handful of feats eliminated the need for Massive Damage saving throws altogether, while there were a couple of semi-mundane ways to avoid automatically failing a save when rolling a 1.
What are those mysterious ways to avoid death by the Massive Damage rule?
Note: I personally know of the Steadfast Determination feat to avoid failing a Fortitude save when rolling a 1.
Note: Debating the merits of the rule itself is done here, if you are interested.