Only have one notification at a time
Getting multiple push notifications (reminders) for due dates is redundant and can be overwhelming on both the menu bar and on android's notification menu.
Instead, it would be great to have one notification that says that multiple tasks are due (akin to how Google calendar, or text messages are presented). E.g. "Reply to John Doe and 5 other reminders", or "6 reminders from Todoist".