36 hours before interview, drink lots of water, some with salt, some without. Then hit the sauna for around 1 hour overall, as this helps sweat out some THC. Then continued drinking water until bed.
4 hours before test. drink more water and take 3 aspirin (can cause false negative).
Hit the sauna for 30 minutes, rest.
Two hours prior to taking the test, take a 5-hour energy with some water (B-12 in the drink adds some yellow to the diluted piss). Popped another aspirin an hour before. Also, if you have creatine, make sure to take some as it will raise your creatinine levels (more advanced tests may check for creatinine levels to test dilution).