How much is not much? Do you have enough for three good rips? Harmalas definitely add to the length and clarity of changa (or any kind of DMT), so if you have caapi or rue seeds, definitely take that before smoking your last bit of changa. Since you don't have much, I assume every hit counts, so I'd make a gravity bong (which can be made with common household items) and milk that bitch as much as you can, and, y'know, inhale & hoooooooold it in till **poof** gone . . .
The Shift is About to Hit the Fan