I had stopped using Blacktree’s Quicksilver about a month ago, but kinda got fed up with Spotlight constantly busy indexing everything on my Powerbook, so downloaded a fresh version of Quicksilver again.
Glad I did, cause besides finding some eye-pleasing updates in this version, I found something else on Blacktree’s website that totally enhances my workflow: Nocturne.
Nocturne is simple app for switching a computer to night vision mode. It has a few tricks up its sleeve: color correction, window shadow toggling, and background removal.
So when my eyes start to act funky at the end of a day of staring into my screen, I switch to night-mode and enjoy the peace to my eyes that Nocturne offers:

A simple yet highly efficient tool that has eased my workflow in a unexpected way.