Exchanging colors between GIMP, Inkscape and Gpick
The review of Gpick mentioned that you can drop colors from Gpick to either Inkscape or GIMP. What it doesn't mention is that you can freely drag and drop colors between those three applications.
Since we do tips and tricks now, why not do that in video? The short clip below demonstrates various cases of using that feature: dragging and dropping from swatches widgets of one app to swatches widgets of other apps, selections in GIMP and objects or gradient color stops in Inkscape.
While at that, I'm delighted to inform you that the next version of Gpick is going to feature color vision deficiencies simulation. Preliminary implementation is available in SVN since summer.