Priorities that mean something
ASAP, High, Medium, Low — and ASAP really does jump the queue.
In most apps a priority field is decoration. Here it moves work. ASAP beats every deadline, so an ASAP task doesn't get to have one.
How to use it
Priority in the add-task form, on a once-over card, or in the task panel. Choose ASAP and the deadline fields disappear, with a line saying why.