One of my favorite and most helpful decluttering tips comes from The Minimalists:
The Spontaneous Combustion Rule
“If this item were to spontaneously combust right now, would I feel a sense of loss, or a sense of relief?”
You can apply this rule to any item you come across in your home. If the answer is relief, feel free to let it go.
Plus, this rule is timeless! As time passes, you might see things differently, so feel free to ask the question again whenever you need to.