Unverified85% confidenceDecision RuleTime unknown
会员店（如山姆、Costco）个护零食多为大包装囤货装，开封后个护类保质期以最短的单支为准，面膜类拆封后氧化快，家庭人数＜3人时慎选30片以上大装
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85%
Confidence
Long-term
Relevance
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Unverified囤货多买看规格：家庭常备选10-20颗独立小包装（避免开封氧化），单人/尝鲜选5颗内；大袋非独立包装虽单价低但开封后保鲜期骤降至2-3天76% similarUnverified散装糖果比礼盒装单位克重成本低约30-50%，家庭自食或办公室分享优先选散装/量贩袋装，仅送礼场景需为包装溢价买单75% similarUnverified多人派对采购份量按“人数×3-4份小包装”计算，因为儿童零食消耗集中在活动前1小时且倾向拆多种口味浅尝，实际人均拿取量高于日常，宁多备20%避免中途短缺74% similarUnverified包装规格选择：首次尝试口感应买小规格（400g以内）或分装小袋，避免大罐买回后老人不接受口味造成浪费；长期固定食用则选独立小袋分装，防止开罐后受潮结块变质73% similarUnverified独立小包装单价高于大袋分装约20-40%但避免受潮变硬、便于控量，办公室零食/送礼选小包，家庭日常吃选大袋更划算73% similar
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