Be organized! Free your mind
I’ve started using Todoist and felt in love with it. I even purchased the Premium upgrade.
It allows you to manage to-do items, tasks, scheduler, reminders, categorize, share and synchronize them. It supports many platforms as well as mobile devices and desktop browsers.
In addition to Todoist, I prefer Evernote for keeping permanent notes and lists. Lists rock! Read David Allen’s book — Getting Things Done.
Be organized! And free your mind!