There are likely infinitely many ways to do this - find one that works for you. This method is more suited to people who live in a home with a yard as opposed to an apartment or dorm.
► Before protecting your home, purify it to make sure you don’t trap in anything unwanted.
A cairn is a pile of stones used as a marker. Build cairns around your property and even inside your home to create a magically linked matrix of protection.
Gather as many stones from your property as you can. Try to find at least four large ones and a few small ones, but any size will do.
► Place large stones outside around your home to create an outer ring of protection
► Place small stones inside your home to create a second layer of defense
Create a sigil of home protection, specifying who and what is allowed on your property. I recommend being respectful of nature spirits who are used to having access to the land, as well as house wights who are already residing on the property.
Paint this sigil on each of the large stones you plan to place outside. You can keep the stones above-ground, or bury them if necessary. If you can link the stones to a power source (such as a river or tree) all the better; otherwise you should regularly recharge their sigil. Arrange the outside stones in such a way that they provide a rectangle of protection around the property.
Create a different sigil for any stones you plan to keep inside. Make them more specific as they relate to who or what may pass through. For example, spirits may be welcomed on my property but not in my bedroom. Place them strategically where ever you need; them may be tucked away in drawers or under beds.
Miscellanea: Recharge the sigils regularly by whatever method you are most comfortable using.
Be creative with this concept - you do not necessarily need stones. Charms hung up in doors could work very well, for example.
Bury your witch bottle outside the outermost layer of protection.