Here's some more shortcuts:
kde - special keys
Alt (and other) keys for kde:
<Alt><F1> The K menu shows up.
<Alt><F2> Run a program.
<Alt><F3> Go to the top-nemubar of the program you are running.
<Alt><F4> Close a window/program.
<Alt><F5> Overview/choose which window/desktop you want to view.
<Alt><Tab> Scroll through open windows.
<Ctrl><Alt><Esc> Graphical way of killing an application.
Click the skull on the window you want to kill. <Esc> again to to cancel.
<Ctrl><Alt><F1> Open tty1
<Ctrl><Alt><F7> (back to) graphical Xterminal.
<Ctrl><F1> Switch to first desktop.
<Ctrl><F2> Switch to second desktop.
<Ctrl><fn> Switch to desktop n.
<Ctrl><Tab> Switch desktops.
<Ctrl><Esc> To start the graphical kde system guard (kpm) where you can kill things.
<Ctrl><n> New graphical window.
<Ctrl><c> Copy selected text.
<Ctrl><x> Cut selected text.
<Ctrl><v> Paste contents of notepad.
<Ctrl><q> Close running program.
<Ctrl><p> Print page.
<Ctrl><t> Open new tab-window.
<Ctrl><w> Close current tab-window.
<Ctrl>Print Copy a screenshot of the current screen to the clipboard.
Paste it to save it. There is also the command ksnapshot. To copy a screenshot from movies using mplayer, start mplayer with: mplayer -vo x11
Specific keys for various applications:
<Ctrl>d Spawn a duplicate window of konqueror.
<Shift><Del> Delete selected file permanently.
<Ctrl><m> Hide/show topmenu-bar.
<Ctrl><u> Clear text-box.
<Ctrl><i> Show info on selected item.
<Ctrl><o> Open location.
source and more shortcuts for suse: nerdstuffs