I just locked the door through force of habit, not thinking that Julia wouldn't be able to get in.
I called him 'Jimmy' out of force of habit.
There are so many things we do during the course of a day through sheer force of habit.
I bow my head before meals just from force of habit - it doesn't mean anything.
I turned left onto her road out of force of habit.
See also: force noun (INFLUENCE)