Make one useful decision
Decide Which Wrapping Paper and Ribbons to Keep

Attractive wrapping is useful only if its condition, size, and intended use make sense. A storage box is a limit, not a target to fill.
Check usability
Look for dirt, tears, tape, and creases. Do not reuse soiled wrapping for a gift or assume ordinary decorative paper is suitable for direct food contact.
Match an actual purpose
Compare paper with the size of gifts or a real craft plan. Bags, boxes, and sheets may serve overlapping jobs. “For crafts someday” can simply move the unused pile elsewhere.
Keep it accessible
Use one existing space where suitable pieces can be chosen without unfolding everything. Untangle ribbons before adding more. Store cutting tools safely rather than hidden among loose paper.
An example and a stopping point
For a household that occasionally wraps small gifts, choose paper that fits that actual use before keeping every large sheet. Check the box and retained wrapping together before buying replacements. Knowing where usable paper is stored is part of making reuse practical; retaining more does not automatically reduce purchases.
A note for your own situation
Condition: Intended use: Size: Storage location: Next occasion:
Keep this with the paper or digital notes you already use. No additional app is required.
For the related next step, see How Many Paper Bags Should You Keep? A Practical Storage Limit. Choose the guidance that fits the task actually remaining.