My parents outsource their Lawncare to me, and I have been taking the huge patch of clover near a corn field and transplanting it around their yard. Just cutting a shovel ful of dirt out and swapping them, and watering the area.
No idea if it'll work the way I want it to, but I guess I'll see if it spreads this summer.
I'd love to go to my in-laws and use a big seed spreader to throw clover and other native plants around, but that would just lead to them killing it all and hiring a lawn company to replant Kentucky bluegrass or something lame like that.
People.
It's people.