The cheapest method would be to buy a vaporizing bowl or tool that can be used in any bong or pipe.
I'm not sure what they call the tools, they are a hot metal stir stick, you take the rod and stir it around the bud in your bowl and it vaporizes it.
Anyone have a link to one of these tools???
The bowls are often used with heat guns but Im sure you can also use a lighter.

You can also cook with your weed, best highs come from ingesting it.