I’ve been using KDE since November of 2010 around the time that 4.5 was released for Fedora. Around the time of 4.4, the KDE folks, especially Aaron Seigo and the rest of the Plasma team, started really pushing activities. I kept talking to people on identica and I couldn’t quite figure out the point of activities. They seemed to be redundant in a world with virtual desktops. (And, as you can see in the comments of the article I’ll be linking to, most people feel the same way) The biggest reason I seemed to hear was that each activity could have a different set of widgets. But one weekened I was messing around with KDE system settings and found out that you could set each virtual desktop to have different widgets and not have to mess with any of these activities. So after that weekend I *really* didn’t understand the whole hassle of activities. This is how I configured my desktops: