The hardest things to declutter are the ones that might be useful

An unused item can always find an imaginary future job. A spare cable might fit something, a jar might become storage, and that oddly sized box could be perfect someday. None of those ideas is impossible, which makes deciding harder than simply sorting useful things from rubbish.

What helps you make a decision without regretting it later? Interested in practical limits for spare items, ways to pass things on, and approaches for small homes where storage has a real cost. The aim is a more usable space, not throwing everything away or buying replacements for things that were genuinely needed.