Sacred Symbol in Doorways

I've been aware of often forgetting to do the sacred symbol
going through doorways. In talking with others, I'm not alone in this.

When I have become aware of it, while still in the middle of some task-sequence,
I've stopped, gone back to the start, a started over.

Other times, I'll mentally rewind the last bunch of misses and do the
symbol for each of them.

I have also been remembering in advance and will do so more and more often.