You're gonna get a hundred different responses for this question, and the most popular answer is going to be "Smoke it!"
The easiest way to smoke it is just by putting it on a piece of tin foil and heating underneath...but the crackheads out there will provide you with some cook pipe ideas made from household items.
But here's my personal fave:
Hot Rails!
Get yourself a small piece of pyrex tubing. Heat up one end until it is glowing red. Do your line, and as the meth is drawn through the tubing and into your nose it vapourizes.
kind of like a cross between snorting and smoking