Option to sort by due date, then by project on home page
Allows users to focus on multiple tasks in one project that are due the same day, while keeping perspective by viewing other projects. Sorting by priority and time due are great, but can lead to a very jumbled view of tasks on the home page.
My day is usually filled with tasks from several different projects. Since I usually tackle one project at a time, so it makes a lot of sense putting them together.