What is the best car air freshener?

Little Trees....

I don’t remember the name, but there’s one that smells like 70s after shave mixed with vomit that gives your car that mini cab smell. Avoid that one.

Open the window and drive a few blocks..

For online buys, the retailer will coordinate the cost of the thing in addition to the delivery cost. In any case, the thing should be accessible to transport to the client's area.

An open window out in the country on a spring day