If you feel like someone is trying to obtain a prescriptive easement to your property, it’s important to act quickly. Anything you do to assert your property rights over a trespasser before the easement is created will defeat the trespasser’s rights.
A hostile, open and notorious trespass, which could lead to a prescriptive easement, can be defeated simply by giving permission to the trespasser. It could also be defeated simply by building a fence to prevent them from crossing property lines.
In particular, if your neighbor is repeatedly using your driveway, the easiest way to avoid an easement is by giving them permission. Now your neighbor is no longer trespassing on your property but has permission to use it for a specific purpose.
This will also protect you if your neighbor sells their home. If you give the current resident permission to your driveway, this prevents any future owners from claiming a prescriptive easement.