Generate a guide on how to create a personalized 'self-care toolkit' or 'calm-down box.' The guide should explain the concept and provide a list of suggested items categorized by senses (e.g., 'Touch: a soft blanket,' 'Smell: a calming essential oil,' 'Taste: a favorite tea'). The tone should be creative and encouraging. Remember to include a disclaimer that this is a supportive strategy, not a clinical intervention.