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About this tool
Plan a room-by-room decluttering sprint with keep, donate and sell piles, session-by-session timings and a finish date.
The Declutter Planner turns a decluttering intention into a dated schedule: it estimates sorting time as items × seconds per decision × a difficulty multiplier, adds a fixed setup block and the listing time for anything you intend to sell, then packs the work into sessions of the length you actually have. Categories are always worked in the KonMari order — clothes, books, papers, komono, sentimental — because decision speed builds on the easy categories and the sentimental box is the slowest thing in the house. It also splits what leaves into sell, donate and bin using per-category shares, and counts the charity and tip runs that split implies.
Open Declutter Planner on AltFTool — it loads instantly in your browser.
Tick the categories under "What are you sorting?" — Clothes and shoes, Books and magazines, Papers and documents, Kitchen and dining through to Sentimental items — and type a rough item count beside each one.
Set Minutes per session, Sessions per week, "Share you expect to keep (%)", Seconds per decision and the First session date, then tick "I will actually list the sell pile" to add 8 minutes an item for photographs, listing and messages.
Read Total time, the Keep, Sell, Donate and Bin or recycle counts and the dated Session schedule, then press "Copy result" for the whole plan as text or Reset to start again.
Selling is costed at eight minutes an item, which is usually the single largest hidden block of time in a declutter.
Categories are sorted into the KonMari sequence automatically, so sentimental items are never first.
Sessions are spaced across the week and dated, so the plan ends on a day rather than in a vague someday.
As a working estimate, around 20 seconds of decision time per item plus a multiplier for how hard the category is, so 1,500 items across a family home comes to roughly 12 to 20 hours of sorting before anything is moved. Selling and disposal runs add substantially more — eight minutes to list each item and about half an hour for a charity drop-off.
Clothes, then books, then papers, then miscellaneous, then sentimental items — the KonMari order. It works because the decisions get harder as you go down the list, so you build speed on categories where the answer is obvious before reaching the box of letters, where it is not.
Compare the resale value against roughly eight minutes per item of photographing, listing and answering messages. If an item will not clear the value of that time, donating is faster, and a common approach is to list only the top-value items and donate the rest in a single trip.
There is no correct number, but the arithmetic matters: at a 90 percent keep rate only one item in ten actually leaves, and the sorting time is almost identical to a more decisive pass, so the effort will not show in the room. Set the share deliberately before starting rather than deciding item by item.