Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Here’s a really simple but very effective tip for speeding up the time it takes for KDE to start up. How it works is that it prevents KDE from reloading your open windows and settings from the last session, thus speeding up the start-up by loading in a blank session.
To enable the setting first head to the KDE Control Centre (some distros like Kubuntu use a custom settings manager, so press Alt-F2 and type in kcontrol). Head to KDE Components > Session Manager.
Since there is already a guide to Sharp Fonts On A GNOME Desktop, I thought I would adapt it a bit for KDE (thanks goes to the author, as I have used some of his content here). This guide leans towards Kubuntu, as that is my distro of choice. This guide also tells how to get Swiftfox or Firefox to work with the ClearType fonts, which is something people have been trying to do for some time.