Are those doors getting you down? Do you feel wedged under the responsibility of holding the door open for people who don't even look down at you? Are you getting cross from all the doors that are shut in your face?
Then this door stop is for you. The smooth wedge design will work with numerous door types, with bottom corrugations to provide a bit more grip on difficult surfaces. Even if you don't adore it the first time it is used, you will at least a-door it.
If you're trying to stop a door on a really hard, slippery surface (e.g. polished or painted wood), my Flexible Door Stop may work better, because it has more flex:
https://www.printables.com/model/79368-flexible-door-stop
For those without a printer, the model is also available on ShapeWays for $20:
https://www.shapeways.com/product/DYJNFYS2W/squashed-human-door-stop
The author marked this model as their own original creation.