I can recommend several, but the possession of said supplements
in Singapore will earn you a one-way trip to the Changi
Hilton. 
It's been said that the consumption of Ritalin (a prescription
drug used to treat ADD) in small quantities can give a mild
boost to one's mental abilities.
Whoa. ADD! Sounds like me. :x I've always had a rather short
attention span. :p
Actually, lately I've been finding myself not focusing most of
the time. I used to find it difficult to focus sometimes, but it's
never been like now, when my attention just feels scattered all
over the place. My memory's dwindling too! I could go into details
but. 
Doesn't sound like I can get Ritalin ley. I can try gingko
biloba la... bilobalabilobala... oops. But I took it before and...
maybe I should try it again. 
Yay dimsum on Sunday!
