I'm addicted to list-making and Trello is amazing. I actually prefer the desktop over the app and I even have a board with email drafts all nicely organized and can be expanded. I usually make an End Of Year board where I keep track of the tasks I want done by the end of the year.
This is fantastic for getting work done! The digital kanban style of keeping a Backlog and moving things over to "Do This Week", then "In Process" (for longer projects) and eventually "Done" keeps the process moving forward.