You need a task manager. Ideally one covering the features below. See the options below that. Most task managers have essentially the same set of features.

Features

• Mobility - availability where ever
• Contextual Reminders for time and location
• Organization of tasks into lists (Project Lists)
• Synchronicity between clients
• Application of tags for Filtering by context
  • Tag by Location, timespan, person, or available tools

Options

This list will inevitably go out of date. I’m using Todoist. It's got no compromises.

• Todoist
• Outlook
• Wunderlist
• Things 3 on iOS
• Notion can work
• Google Tasks
• Google Keep

Related Notes

Contextual Reminders