Researchers have discovered that increasing production of a protein called RGS-14 could significantly boost visual memory. They are currently investigating the exact effects on humans, but all I can think is: Photographic memory in pill form.
Sure, we don't really know how the human brain would be affected, but there are certainly great results with mice already:
Mice with the RGS-14 boost could remember objects they had seen for up to two months. Ordinarily the same mice would only be able to remember these objects for about an hour.
The only trouble if similar effects occur in humans and if the magic memory pill of my dreams could be created is that there would have to be a counterpart for forgetting. Because sometimes there are things you really don't want to remember all too well or all too long. [Science Mag via io9]