I use Calendar Alarm to make calendar appointment ring like an alarn instead of a subtle vibration.

Todoist is where I store all my lists: todo, packing list, meals (for cooking ideas).

I install uBlock Origin and uBlacklist in all my browsers. I don't use the web without them.

I'll occasionally use SelfControl if I cycle through time killer websites too much.

I keep my technology as quiet and self-effacing as possible.

Removing the distractions does a great job. I fought those aggressively and now I can't imagine unfiltered technology. I list a few other things I did here: https://nicolasbouliane.com/blog/silence