I use a Trello board with four sections for longer term projects that I am working on. I track my current projects in the "Current" section. I have a "Prioritised" section for projects that are ready (next actions already known) that are either urgent or important to get to that week. I store other ready projects in the "Ready" section. Finally, I have an "Icebox" section for ideas and projects that I am unsure about or need more thinking.