There is no wrong way of using 2Do, and unlike other to-do apps, it won't force you in adhering to a particular task management methodology.
Email to 2Do: Optional plugin that allows you to integrate your email address directly with 2Do, thus allowing you to email yourself tasks from anywhere. You can even use automation, such as IFTTT, to add reminders to your list.
SIMPLE TASKS, CHECKLISTS & PROJECTS
• Create simple tasks, or checklists and projects with sub-tasks. Tasks can have notes, attachments and multiple alarms.
• Set any task to repeat using a flexible set of options.
• Assign multiple alerts / reminders More Info »
LIST GROUPS, LISTS, INBOX & SMART LISTS
• In addition to built-in Focus lists that allow you to conveniently view upcoming, starred or scheduled tasks, you can create multiple lists to manage and organize your tasks.
• Built-in support for GTD Inbox
• Smart lists let you harness the true potential of 2Do using a number of search options, filters and search pre-sets. Using Smart Lists, you can create custom views of your tasks and use them to focus-in or find frequently managed tasks. ?
• Manage tags from a dedicated Tags Panel
• Organize your tags within groups
• Leverage the powerful integration of Tags & Smart Lists to filter on frequently managed tasks.
?• Find Used vs. Unused tags
YOUR TASKS UNLIMITED
• Set a Start Date to hide tasks from a list before they're relevant and add Duration to put an estimate on the amount of time you’ll be spending on your task
• Add an action to call, write an email or trigger a URL Scheme right from 2Do
• Attach an image or a voice note to your tasks
• Customizations for time management
• Use as an events / party planner, or an effective birthday reminder
• Desktop-class Task Manager