X2, that and creatine, on top of the aspirin your taking. From what I've learned so far: They measure creatine levels, and try to find thc metabolites in your body's fat cells, usually when you smoke heavily your creatine levels decrease, and there's tons of thc metabolites in the fat cells from all those munchies you ate. The way to trick the test is to get enough vitaminb12 in your system to turn your pee yellow, clear pee means diluted pee, which is untestable and instantly makes you look bad and calls for another test. Then you drink enough creatine mix to make it harder to find the fat cells because of the creatine in your muscles trapping water and other things with it. I think the aspirin helps it make the thc metabolites harder to show up, thus further masking them from showing up. Anyway hope this helps you, but may not work for everyone.