How to reorder tasks your own way and keep that order
Drag tasks up or down in Task List by Zaweba, or press Alt+Up and Alt+Down. Your own order is saved and is the default sort for every list.

Your own order is the default in Task List by Zaweba. Drag a task up or down in its list, or select it and press Alt+Up or Alt+Down, and the new position is saved. Close the app, open it next week, and the list is still in the order you chose.
That sounds basic, but many to-do apps sort by date or name and give you no say. Here the arrangement is yours.
Doing it
With the mouse, press on a task and drag. A sky-blue line shows where it will drop; release to place it. With the keyboard, select a task and press Alt+Up to move it up one place or Alt+Down to move it down. Hold the key combination and tap repeatedly to move it further.
To put a task in another list, drag it onto that list's name in the sidebar. It keeps its due date, stars, tags, notes and checklist.
Temporary sorts that leave your order alone
Sometimes you want a different view of the same list. Sort by stars, by due date, by date created or by most overdue. These are temporary: your own order is still there underneath. Choose Back to my order and the list returns to exactly how you arranged it.
That means you can check what is due soonest without losing the sequence you planned.
A few ways to arrange a list
As a queue: the task you will do next at the top, the one after that second, and so on. When you tick the top one, the next is already in place.
By context: phone calls together, errands together, computer jobs together. You do batches in one go rather than switching back and forth.
By energy: the hard task first while you are fresh, quick wins after lunch.
Whatever the method, the point is that the order expresses something the dates and stars cannot.
Order across lists
Lists have their own order in the sidebar. They are shown by importance first, from Critical down to Someday, then by your own drag order within each level, and they can also be moved with Alt+Up and Alt+Down. Use list importance for the broad picture and your task order for the detail.
When a task is in the wrong place
If you drag something to the wrong list or the wrong spot, press Ctrl+Z. Undo covers moves as well as deletes and completions, up to 50 steps back. If a list suddenly looks jumbled, check whether a temporary sort is on before rearranging anything by hand.
Recurring tasks keep their spot
When you tick a recurring task, the next one is created in the same list and in the same place. A weekly job you have placed third stays third each week, so your arrangement survives the routine.
Task List by Zaweba is built around the idea that you know your own work better than any automatic sort. Dates, stars and tags help, and the smart views gather tasks by time, but the order inside a list is the one place where you say plainly what comes next. Spend a minute on it each morning, put the first job at the top, and the rest of the day tends to follow from there.