Most sorting projects stall because they begin room by room. Working through one category at a time across the whole home is slower to start but far quicker to finish.
When you sort one room at a time, identical items stay hidden across different spaces. Three half-empty boxes of cables in three rooms each look reasonable on their own. Gather every cable in the home into a single pile and the duplication becomes hard to ignore. This category-first idea was popularised in widely read decluttering writing and remains the most reliable way to see what you actually own.
For each category, make four decisions rather than two. A simple keep-or-toss split forces too many borderline items into "keep" by default.
Start with low-attachment categories such as kitchen gadgets, cleaning supplies, or media. Leaving photographs, letters, and keepsakes until last lets you build decision-making momentum before reaching the hardest items.
Keepsakes slow every project because each one carries a small decision. Keep them out of the main sort entirely. Place them in one labelled box during the first pass, then review that single box separately when the rest of the home is already sorted. By then the standard is clearer and the choices feel less heavy.
Diverting items from landfill is easier when you know the local options before you start, so usable goods do not sit in bags by the door.
Confirm accepted items with each location first, because programs and accepted categories vary by province and municipality.
End every session by completing the "relocate" trip and removing the "pass on" and "recycle" piles from the home the same day. Items that linger tend to drift back into the keep pile. Sorting only counts once the removed items are actually gone.
Continue with choosing storage bins by room for the items you decided to keep, or read about keeping rooms clutter-free afterwards.