Ah, finally a thread after my heart... I would start with Adderall, it's much better than Ritalin. Fewer jitters. My personal fav. If that doesn't do the trick, go hardcore with Dexedrine. Adderall makes you feel euphoric, like Cocaine, Dex won't. It's also what the military gives fighter pilots. Still not enough? Mix it with Vyvanse. It's another psychostimulant but plays with the others very well. It works synergistically. If all else fails, try the hardest mofo on the block... Modafinil (Provigil). You can go days, literally DAYS without feeling the least bit tired or the side effects of going without sleep. Of course you shouldn't actually do that, after 3 or so days you'll go insane (6 according to the study). All of the above require prescriptions which are not hard to get. Might I also point out that with or without health insurance these are all still cheaper, per dose, than any energy drink or weight loss pill on the market. So, bang for the buck-wise, these are your best options. Have fun! Edit: I believe Adderall may be illegal in Canada. Some retarded little kid won a Darwin Award and took too many, ruining it for everyone there I guess.