Hi, I'm looking for a simple to-do list that will synch between my iPhone and macbook. I'm currently using Clear, but I need to find a new app because Clear doesn't allow me to save my completed tasks. Once I mark something as completed, the task disappears for good. My perfect app would somehow store completed tasks somewhere. I'd like to periodically go back and remind myself of projects/tasks that I've worked on. Might anyone have a better solution for me? Any ideas are most appreciated.