The Home:

The home of a believer should be free of things that are sinful and idolatrous. This is something for a consideration especially for those who are new believers and who are coming out of a sinful, worldly lifestyle. In the course of making your dwelling pure, one might find in their home objects and things that are remnants of past sinful practices. For example,  perhaps someone was once into tarot cards or Ouija boards, or pornography, or had statues or idols of other religions such as a statue of Buddha, or perhaps they had a habit to practice drugs once and still have drug paraphernalia. Whatever your past sins were, (and everyone has sinned in one way or another), you will want to clean your home of these things and create a holy spiritual environment in which to reside.

A Mezuzah is a small decorative container affixed to a doorpost. It contains inside it scriptures in order to fulfill the command to write God's law on our doorposts and gates. It is usually tilted slightly to indicate that these laws are in effect at this home inside this door, as a way or sort of pointing to the inside of the house as under the authority of the commandments of God. If one is very strict about this custom, they may get a Mezuzah that contains carefully written contents by a Jewish scribe trained in this practice. However, in recognition that this is a beginners guide to Torah Observance, one might simply print out a tiny copy of the 10 commandments and tape them to your front door post as a starting point. You may also choose to do so for your interior doorways as well, although it is not customary to put them on bathroom doorways as bathrooms are not considered to have the same level of holiness as other rooms given that they are used for more common purposes such as relieving oneself. One should also use other rooms beside a bathroom when making "audible" prayers for this same reason.