• Get into (someone's) good books
• Get into (someone's) head
• Get into (someone's) skin
• Get into a car
• Get into a dustup
• Get into a fight
• Get into a habit
• Get into a university
• Get into an argument
• Get into character
• Get into debt
• Get into detail
• Get into mischief
• Get into shape
• Get into the groove
• Get into the habit of (something)
• Get into the rhythm
• Get into trouble