The Hipster PDA (Parietal Disgorgement Aid) is a fully extensible system for coordinating incoming and outgoing data for any aspect of your life and work.

I also use: qrun (for running notes, Standard Operating Procedures), qlog (for logs of activities on projects, journal entries), qtalk (for lectures), qbug (for bugs, things to fix or tweak, etc.),… You get the idea. Adapted this from Merlin Mann’s “runx” convention, but moved the odd character to the front to take advantage of autocompletion.)