I like to have the system icons, like trash, my computer, home and network on the desktop. There's no system configuration that simply switches them on - I guess the developers have another taste .. But, it's easy to do: just create a simple text file for each in $home\Desktop
Create $home\Desktop\home.desktop
and add the content:
[Desktop Entry] URL=$HOME GenericName=Home Folder Icon=user-home Name=Home Type=Link
Create $home\Desktop\computer.desktop
and add the content:
[Desktop Entry] Name=My Computer Comment=All system files Icon=computer Type=Link URL=/ OnlyShowIn=KDE
Create $home\Desktop\network.desktop
and add the content:
[Desktop Entry] Name=network Comment=Network shares Icon=preferences-system-network-sharing OnlyShowIn=KDE Type=Link URL=remote:/
Create $home\Desktop\trash.desktop
and add the content:
[Desktop Entry] Name=Trash Comment=Contains removed files Icon=user-trash-full EmptyIcon=user-trash Type=Link URL=trash:/ OnlyShowIn=KDE;