Stickies - Stickies is a PC utility written to replace Post-It-style notes left stuck to your monitor.

OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.

Indicator Stickynotes - Floating colourful sticky note windows on your desktop!

Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Pystickynote - Stickynotes for your desktop easily from the command line.

AllMyNotes Organizer - AllMyNotes Organizer is a multi-functional hierarchical information manager for Windows.