Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
One of the things that I love about being a Linux user is that there are tons of incredibly useful little tools. These are three of the “killer apps” I use that may seem like a generic tool, but are really amazing in some way:
Conduit - conduit-project.org
There are tons of file synchronization applications for Linux, but Conduit really stands out. For starters, Conduit is really simple. You just drag in data providers as either sources (sending data out) or sinks (receiving data) and connect them however you wish. The interface is split in to different syncing groups, so you can easily manage as many different syncing jobs as you need to.
VNStat - humdi.net/vnstat
When Comcast decided to implement a bandwidth cap, I had to find Bandwidth monitoring software for Linux, Windows, and OS X.