Mezuzah Questions & Answers

There are records of people using mezuzot as amulets since ancient times.

if we have faith, aren't mezuzahs enough?

Sacred objects themselves, such as a Torah scroll or the parchment of the mezuzah on which Biblical verses are written, cannot just be thrown in the garbage; they need to go through a special burial process.

I want to understand why some people touch the mezuzah on the doorpost of their home as they enter or leave?

I purchased three mezuzahs from a synagogue sale (without the parchment). I’ve heard they are very expensive; can I just place a copy inside?