Started with Debian Live autoscripts and the most basic kde system.
Added virtualbox guest packages, so it works better in it.
Added git, vim, openssh-server, htop and iftop to the system package list.
Added plasma-widgets-addons to the kde list.
Created apt preferences file and in it gave vlc a negative priority to prevent it's installation.
Added packages so gtk applications look good on KDE.
Added cpufrequtils so the CPU speed can be scaled down, if supported by the CPU.
Added archive-areas parameter so that contrib and non-free are enabled as well.
Replaced plasma-widgets-addons by the broader kdeplasma-addons packages, since it contains several useful other addons.
Added dnsutils and various (de-)compression programs.
Added desktop package list which contains the base packages I want in every desktop.

It now contains desktop-base and iceweasel.
Disabled apt's sources lines.
Added a first selection of kde-standard's dependencies to the list.
Enabled the backports repository.
Added ntp package to the system list.
Started customizing KDE's default by creating files in /etc/kde4.

Added kcmclockrc which sets the clock to use the ntp server.
Added kdeglobals to specify Iceweasel as the default browser.
Added some firefox extension and flash to the browser.
Added bash-completion to the system list.
Rearranged the list to group packages by type, indicated with comments.
Added various packages from the 'official' rescue list.