What is something that makes your life easier that you wouldn't have mind discovered a long time ago?

Id say for me is listening to music in public while doing basically anything, normally I didn't do stuff like that cause I was always too hypervegilant to be outside without all my senses active but I tried it once cause I was just in a meh mood and not only does it increase my seeing senses but people don't bother you and it's more comfortable not hearing all the bullshit around you, people dont even think to say anything, its how i prefer it.
What is something that makes your life easier that you wouldn't have mind discovered a long time ago?
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