One feature that I think would significantly enhance the experience is the ability to visually differentiate cards—such as making some cards larger than others—to reflect priority or effort required.
For example, today I have a major report due alongside several low-impact tasks, all by the end of the day. While I can use labels and reorder cards to indicate importance, having a more immediate visual cue—like card size—would make it much easier to orient myself at a glance. If I only have 15 minutes between meetings, I could quickly spot and knock out smaller tasks, while saving larger cards for open time blocks.
