Doors, door handles, the top of door frames etc. Most effective with guardians and the like.
Hung or tied on gates. Make a warning sign with a sigil or knot magic with ribbons.
Any entrances or exits, including ventilation, drains, holes of any kinds etc.
On window sills. These will catch light – make use of this!
Under lamps and on lampshades.
On shelves and hearths.
In pockets, in wallets, sewn onto clothing. If they are close to you, they will absorb body heat, many in witchcraft charge stones and the like with their own energy, so be wary of this if you have little energy yourself.
On animal collars! As they travel about, they carry protection.
On top of the loo, the sink or tied to the tap or on the shower-head. Be aware that the bathroom is not the cleanest of places and that water can do some damage to things like metals and stones.
Medicine cabinets and cupboards, protecting your medication and food is wise idea, it might be best to avoid strong smells with herbs and spices as this can be absorbed by some food.
The four legs or posts of a bed, I hang charm-bags alternating between sweet smells to help sleep and strong smells to ward things away. Half the battle of warding is feeling secure yourself!
Under your pillow or sewn into a blanket; a blanket or duvet can be a ward itself – as everyone knows, you pull your blanket over yourself as protection as a kid, we use blankets to shield from the cold and the feeling of a blanket weight’s makes you feel secure!
Your computer monitor or laptop, place something on it while it is off.
Bookmarks and bookends can acts as wards, especially in stories that can affect you psychologically it is a good idea to ensure that scenes and images won’t haunt you in your thoughts and dreams.