My To-Do List widget
My To-Do List is a widget for Windows with Windows Sidebar / Gadgets (bundled in Windows Vista and 7, and needs to be installed separately from Windows 8 onward).
16 Alternatives To My To-Do List widget
Claws Mail
Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response
Joplin
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Mail and Calendar
Mail and Calendar is an email client by Microsoft that comes bundled inside the Windows 10.
Mailbird
Mailbird is the best email client for Windows 7, 8 and 10
Mailspring
Mailspring is a mail client for Mac, Windows and Linux.
Microsoft To-Do
Task management tool
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.
Org mode
Org: an Emacs Mode for Notes, Planning, and Authoring
Outlook
Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Postbox
The Power Email App for busy professionals, like you.
ProtonMail
Secure email with absolutely no compromises. Get your free encrypted email account today.
Task Coach
Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
Taskwarrior
Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant…
ToDoList
Windows desktop application to stay on top of your daily tasks.
Todo
Todo is a to-do and task list app.
eM Client
eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.