Synology Note Station - Without needing to spend money on Evernote, Synology Note Station provides a desktop client to organize all your random notes in one place.
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.
UpNote - A beautiful and clean cross-platform app for notes organizer
Tyke - Mac menu bar app that @torrez really needed to take notes
Pocket Lists - World’s Friendliest To-Do List App
Thought Train - Stop using sticky notes to remember what you're doing 📒 🚫