This is a very good recommendation mentioned by @christina4
As well as the salt and the other witchy charms.
You can also feel free to use regular protection incenses of your choice. For me I would place the cleansing herbs or incenses at the four corners of the house and then place a white or black candle in the Centreof your home as you chant or say a spell for protection of your choice based on your intentions.
All in all the others have given advice and opinions that are very beneficial for you. 
Blessed Be💫