1. Adverbs of frequency: "rarely" and "quite" are used to express how often something happens or the degree of something, which adds nuance to your answer.
2. Infinitive of purpose: "to make a detailed shopping list" and "to avoid unnecessary purchases" use the infinitive form to explain reasons or purposes, which is a natural way to expand your answer.
3. Present simple tense: Most of the answer uses the present simple tense (e.g., "I tend to make...", "I'm quite conscious...", "I don't like clutter"), which is appropriate for talking about habits and routines.
4. Coordinating conjunctions: The use of "and" and "since" to connect ideas makes the answer flow smoothly and sound natural.