intravenous methamphetamine - 300mg of 85%+ purity. should keep me going for a day.
otherwise i'd swap that for an 8-ball of Peruvian Marching Powder - not the leaf you silly billy - (3.5g's) of which i'd spend a night as a pin cushion for the first 2 grams and rock up the remainder of 1.5g's.
or some other recommended, and most appropriately, enjoyably recreational stimulant that'sha full on empathy as part of it. perhaps something extremely swirly that leaves one full of lol's along the way! LSD, 2c-b, DMT, or for the first time, something from the NBOME series and family tree.