If you feel concerned about negative influences or thoughts coming your way, hang a small sachet of this in each window (you can hide them behind the curtains if you wish) and above each external door.
3 parts rosemary
2 parts fennel seed
1 part juniper
1 part dill seed
1 dried chili pepper
1 part the outer skin of garlic
1 part coarse salt (rock salt)
Place in a red cloth tied with a black cord. If you think you know who might be harbouring negative thoughts about you, then you can also place a small mirror facing outwards in the window which most closely points in their direction. This will reflect back any negativity.