Decide what to keep or let go

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I am decluttering and cannot decide on these items: {{items}}. Give me a framework: (1) four fast filters — used in the past year, would I rebuy it if lost, is there a substitute, what does the space it occupies cost; (2) sort into four buckets — frequently used, emotionally valuable, backup, pure clutter — with a disposition for each; (3) the mistake people like me most often make, such as the 'might need it someday' illusion; (4) a holding-box mechanism: uncertain items go in a dated box, and anything unopened in three months goes; (5) the real cost and psychological barrier of each disposal channel — sell, give away, recycle.

我在整理东西，纠结这些要不要留：{{物品清单}}。请给我一个判断框架：1) 用四个问题快速筛——过去一年用过吗、如果现在丢了会重新买吗、有没有替代品、留着占的空间值多少钱；2) 把物品分四类：常用、有情感价值、备用、纯粹占地方，各给处理方式；3) 指出我这类人最容易犯的错（比如「以后可能用得上」的幻觉）；4) 给一个「暂存箱」机制——不确定的先放起来标日期，三个月没打开就处理；5) 提醒我处理渠道（卖、送、回收）各自的成本和心理门槛。