Trello and Asana both are pretty generic and seem to refrain from enforcing any particular use case through UI. I also found this genericness hard at first, esp

Trello and Asana both are pretty generic and seem to refrain from enforcing any particular use case through UI. I also found this genericness hard at first, especially having used FogBugz and other “traditional” PM / ticket tracking tools that do all the decisions for you. However, I seem to be stopping caring too much about creating “proper” cards (we use Trello as well), adopting the “create a card with whatever is on your mind if you feel there's a need for it”-like approach. I like it, and it's fast, maybe it'll will work for you, too? Of course, some things still have to be considered before creating the card—e.g., task atomicity—but that's the case with any tool. It depends on your workplace and workflow, though. If there's a certain degree of formality there, I think it's much better to have this enforced by UI, because then decision making is likely to become a real problem.