At work, I've recently taken up managing the codebase of GridSAM. Part of this involved arranging and moving a whole load of patches from one svn repository (maintained internally) to another (the SourceForge site). Subversion on its own isn't all that good at this, so I started using quilt to manage the patches. The workflow goes something like this:

For years, it's been a major failing of Linux (and X11 in general) that it's not been possible just to plug in a new monitor and be able to extend your desktop on the fly. This is just about OK for desktop machines, which don't tend to change their configuration very often. It really, really sucks for laptops, though. It's really quite painful (and potentially quite embarrassing) to have to kill X and restart it before you can plug your laptop into a data projector at a conference.

But... X now has a thing called XRandR, that allows you to reconfigure your X display on the fly without restarting anything. I've got a couple of talks coming up shortly, so I thought I'd have a play.