NotesTree 

WELL STRUCTURE YOUR INFORMATION (such as CURRENT NOTES, info about your business, hobby, friends etc.) in a tree. Supports rich text formatting (bold, italic, font sizes etc.) and embedded images. Puts itself in SYSTEM TRAY (optionally).
notes app notes application tree database editor current notes system tray windows taskbar all in one place keeping current notes keeping notes organizer notes pad current notes utility

EssentialPIM 

This free personal information manager can store and manage schedules, to dos, notes, and contacts. It offers 128-bit encryption, MS Outlook import/export, Windows address book import/export, search capabilities, and versatile print-out capabilities.
personal organizer pim personal information manager free pim personal pim contact manager contacts keeper outliner notes keeper dayplanner daily organizer scheduler