I know I sound like a broken record going on and on about OmniGraphSketcher, but it really is an essential tool for econ students. At least ones who refuse to turn in hand-written homework.
But I thought I'd mention the other Omni app that helps me remain King of Nerd Mountain: OmniOutliner.
I take notes (admittedly handwritten) during class and then organize them into an outline using this awesome app. It does all the normally outliney stuff, which makes it great for organizing hierarchical information. And come test time, I just bust out the One Outline to Rule Them All and kick some ass.
So, thanks, Omni.
1 hour ago