Easy Notes 

Easy Notes is handy and intuitive tool targeting four areas: Tasks, Note Tree (a technology to store your notes in the tree structure and to have them hierarchically sorted), paper sticky notes replacement and calendar replacement.
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TurboNote+ desktop sticky notes 

Sticky notes desktop shareware managing to-do lists, reminders, schedules, instant messaging and other PIM tools to boost business productivity, saving time and money. Easy to install and use, and reliable. Free trial download and affiliate program.
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SuperNotes 

SuperNotes is a feature-rich desktop sticky notes application. It allows you to record and organize information without cluttering up your desk with scraps of paper.
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WinNotes 2005 

WinNotes 2005 - leading task organizer software with schedule system, reminder and sticky notes as bonus
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InfoStore 

InfoStore is designed to provide fast, simple and powerful management of your notes and lists, structured in the way YOU want! Features include: Full featured search mechanism, importing and exporting, printing, advanced sorting and much more...
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Visual eNote 

A featured reminder and scheduler for Windows. It can help you keep in mind important information by displaying skinnable sticky note on your Windows desktop or sent a note to the desktop of any other PC that on the network
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