In this most recent game, I picked up the "T-Shirt of Resignation", which comes with the Amnesia effect.
I have to say, that might be a little bit overpowered... right now it's basically a money-making machine, so long as you're willing to bore yourself going back and forth on a planet surface. It seems that it'd make more sense for it to be a negative effect -- just because you don't remember you explored the same place 10,000 times doesn't mean that the Bankers are going to happily buy the same data again and again.
