I sometime do, and I sometimes don't truthfully. If there is one near by I totally do, but if there isn't one, I will clip it on the curb so it doesn't hit anyone's car. I am innocent and guilty of this at times, but most times I make an effort to put it away.
Check out how Grocery Stores do it in NY where I was raised
See.. this is the Quarter Cart and you had to put a quarter in to be able to get a cart and you couldn't get your quarter back unless you hooked your cart back up to the cart station and the money popped back out!
We used these in New York all the time at grocery stores and there were never any carts roaming. Imagine a quarter solved everything! Some would still ditch their quarters,but you would see other people putting them back just to earn a quarter lol! What do you think of this kind of cart?