I am using Trello to manage a large program. I have multiple tasks that have an individual card created with a specified due date. However there are intermediate actions (sub-tasks) on that card that need to be followed up. For e.g. if my design has to be completed in 2 months from now, and it has 3 sub-tasks; I need to follow up on these sub-tasks in between before the due date. One approach is to create individual cards for each sub - tasks with their due date, and put these sub-tasks cards in checklist. However since this is a large program, it will end up cluttering my board. I was hoping to find a mechanism, approach to put intermediate followups on the card. Would appreciate any help/pointers on that.
Thanks