AllInOneAlarm (or AIOA) is an open source alarm clock written in AHK that is completely portable based off of portableapps.com standards. Run this application comfortably from any removable device, and because its portable all settings will be saved onto your usb in the "Data\Settings" folder rather than the host computer. No need to worry about usb drive letters affecting usablity as all paths are not absolute they are relative. New features are being added nearly every day, so check back often! Please check out the PA forum topic for more info and downloads.
AIOA on PortableApps.com