The biggest benefit of shadowing is you can do it without your hands or eyes, so it enables you to use your commuting or house working time while simultaneously learning English.
Here is another list of nouns where "the" is typically omitted:
• Schol
• University
• Hospital
• Home
• Prison
• Work
• Home
• Prison
• Church
• Going to town
• Going to sea
• Going to bed
• Appearing in court
Here is the list of common idiomatic phrases using "the":
• The gym
• The doctor
• The dentist
• The bank
• The radio
• The movies
• The grocery store
• The internet
• The sky
• The police
• The airport
• The train
• The bus