I just use Google Tasks, and have done so successfully for well over a year. The feature set is minimal, but improves occasionally. Its very fast to navigate a

I just use Google Tasks, and have done so successfully for well over a year. The feature set is minimal, but improves occasionally. Its very fast to navigate around with the keyboard shortcuts, and it supports multiple lists. I tend to make long and short term lists in several categories (work, personal, hobby, reading). Most importantly, and I cannot stress this enough - it is always available to me. It doesn't go missing. It doesn't have synch problems. I can get to it from any computer or phone I use. The iPhone integration is good. And its already open in my e-mail window. The fact that its simple, ubiquitous, and just works, outweighs the advantages of more feature rich systems, for me, in practice. Also, if you go to: https://mail.google.com/tasks/ig?pli=1 https://mail.google.com/tasks/ig?pli=1 you can get a fullscreen view.