Great topic and sharing of ideas
I usually do the same, almost on a daily basis, at home they laugh the way I grab something out of the trash that belongs in the recycle receptacle, I bet you do too, eh? ha!ha!
If I see litter I pick it up, if water is dripping in a public bathroom I am using I tighten the hot and or cold knobs.
I hate when people wipe their hands and leave the paper napkins on the sink counters in public bathrooms, a lot of things that annoy me in those places, but I won't even get started, ha!ha!
A nice thing to do on Earth Day, especially with kids, is to plant something, even a tree or left over Easter/Spring bulbs, etc. Then on every Earth Day you can tell the kids it's the tree or plants birthday
Just a little thing I use to do with my son when he was a little kid, I'm sure it is nice to do with grandkids too . . . even the neighbor's kids

Enjoy the day,

DE