KMail Power Tools is meant to be a suite of enhancements to KMail. It is currently composed of a script that acts as a filter (which takes input from stdin and outputs the modified mail to stdout), adds dialog boxes to kmail, and allows the user to remove all attachments from an email (without user interaction), selectively remove attachments with user confirmation, and detach (i.e. save then remove) any attachment to a directory chosen by the user.
KScannerButtons is a daemon plus an optional KDE frontend for monitoring your scanner buttons so that actions can be taken in response to button presses. It's composed of a daemon (sanebuttond), a frontend that will display an icon in the systray, and a dialog box to configure and launch the daemon. It is based on the button monitoring capabilities found in some SANE backends. It has been tested with the avision backend and an HP 5300C scanner. The frontend requires Kommander (kde-webdev).