I realized I didn't give examples of things I've convinced people of, so I figured I'd elaborate--sorry for the comment length; I'm not trying to pile on you, just hoping to inspire others!
- I've pointed out to a few people that restaurants will often let you bring your own food containers for leftovers, and sometimes will box it for you, so that you don't have to use Styrofoam or single-use plastic
- I've inspired a few folks to repair their clothing instead of throwing it out by wearing very visible patches on my own clothes. I usually make them look pretty and/or creative, which makes them popular with people
- I've steered folks away from Spotify by sharing places I like to buy music that aren't streaming platforms (I even got a family member a CD player so they could build a collection, and it went down really well with them!)
- I like to make zines going over various ways I've found of consuming less and saving money. I've gotten a lot positive feedback on them over the years.
Fuck yes, libraries are awesome, and I'm so glad that people are turning back to them.
BTW, this is a good reminder to patronize your local branch today and, if possible, throw some money their way.