MailNote does one thing but does it very well!
If you happen to send emails to yourself containing information you want to store for later use than MailNote is just what you need. Select MailNote icon in the menu bar, type or paste text, press Send button and that's it, your information is stored in your mail account. If you prefer keyboard shortcuts to mouse opertations, they are ready to use and fully configurable.
Invoke note creation window by pressing MailNote menu bar icon or with keyboard shortcut.
Type or paste from clipboard your note. The subject will be given automatically but you can modify it.