One of the most popular email services, Gmail keeps track of all your emails with threaded conversations, tags, and Google-powered search to find any message you need.

Trello is a team collaboration tool that lets you organize anything and everything to keep your projects on task.

Evernote is a powerful note taking application that makes it easy to capture ideas, images, contacts, and anything else you need to remember. Bring your life's work together in one digital workspace—available on all major mobile platforms and devices. Using Evernote for work? See Evernote Business.