I always watch my GMail, so I tend to save tasks as drafts; they are very visible.
When I go away from home, I put on my desk (the physical one) some things that I’d like to continue when I get back.
I use the desktop (on my computer) as a temporary location both for sorting this and also to know and have a visual overview of what I’m working on.
Of course, I use Google Calendar, I have a system for tasks and organizing things.
But this simple trick – putting things where I will notice them – helps me be more organized.