Because I got a new bike hitch carrier I need to park way farther in the garage. Time to make something that will keep me from driving into things.

I'm going to tie up a tennis ball which will hit my windshield when I get too close to the wall.

Some string

Tie it around a nail.

Stick the nail into the tennis ball.

Adjust it and tie it up to a hook/screw.

No more banging into stuff.