You can “assign batched tasks to one person, give them all the same due date, mark them as complete or incomplete, or — maybe the biggest timesaver of them all — delete all of the selected tasks.”
Manually inputting similar data is a big time suck. Use something like Asana to perform batch operations by multi-selecting tasks. You can “assign batched tasks to one person, give them all the same due date, mark them as complete or incomplete, or — maybe the biggest timesaver of them all — delete all of the selected tasks.” In the case of Trello, you can create a master board to automatically gather all of your most important tasks (or the ones whose deadlines are closest at hand) in one place for easier prioritization.