The golden rule: start gentle
Always begin with the mildest method: a dry cloth, a soft brush, then a damp cloth with plain water, then mild soap. Test any cleaner on a hidden spot first and wait to see the result. If you are unsure, stop. Buyers forgive honest dust far more readily than damage caused by cleaning.
Check first: should you clean it at all?
Some items lose appeal when cleaned. Leave these alone, or limit yourself to light dusting, and let the buyer decide:
- Coins: cleaning can permanently damage the surface. Our coin guide explains why.
- Antique furniture finishes: stripping or refinishing original surfaces can reduce interest. Light dusting is usually safest.
- Patina on old metal: many collectors prefer original patina on bronze, brass and copper.
- Paper, cards and comics: moisture and erasers cause damage. Handle with clean, dry hands only.
- Old paintings and prints: leave cleaning to a professional conservator.
- Vintage clothing with fragile fabric or prints: check fabric and age before any washing.
Cleaning checklist by material
- Everyday clothing: follow the care label. Wash, dry as directed, remove pills gently, and steam out creases. Air out stored items to remove odors.
- Shoes and sneakers: brush off dirt, clean uppers with a cleaner suited to the material, wash laces separately, and clean soles. Avoid soaking leather or suede. See our sneaker guide for what buyers check.
- Glass and ceramics: hand wash in warm water with mild soap. Avoid the dishwasher for vintage, painted or gilded pieces, which can fade or dull.
- Hard plastics and toys: a damp cloth with mild soap. Avoid soaking parts with stickers, electronics or printed decoration.
- Electronics: power off and unplug. Wipe surfaces with a barely damp cloth, clean ports with a dry soft brush, and never spray liquid directly onto a device. Remove old batteries and check for corrosion.
- Wood: dust with a soft cloth, then a slightly damp cloth if needed, and dry immediately. Avoid soaking wood.
- Leather goods: wipe with a soft dry cloth, then use a cleaner made for that leather type after testing a hidden area.
- Cast iron: follow established care methods for cast iron, and describe any restoration. Our cast iron guide covers what collectors look for.
- Books: dust with a soft brush. Do not use water or erasers on pages.
Remove odors safely
Smoke, storage and pet odors are a common reason for returns. Airing items outdoors on a dry day, in shade to avoid fading, often helps. For textiles, washing per the care label is the first step. Always describe any lingering odor in your listing.
Small fixes worth doing
- Replace missing screws, laces or batteries with matching parts.
- Tighten loose handles and knobs.
- Re-thread a drawstring or sew a loose button using matching thread.
- Gather all pieces, manuals and accessories in one place.
Avoid repairs that change the character of vintage or collectible items, and always mention what you fixed.
Photograph after cleaning
Take your listing photos once the item is fully dry, in daylight, on a plain background. Show the item honestly, including any marks that did not come out. Our photography guide explains light and angles.
A basic cleaning kit
- Soft microfiber cloths and a few soft brushes, including an old toothbrush for corners.
- Mild dish soap and a spray bottle of plain water.
- A lint roller and a fabric shaver for clothing.
- A handheld steamer or iron.
- Cotton swabs for small crevices and buttons.
- Gloves, and a well-ventilated space for any cleaner stronger than soap.
Keep specialist cleaners, such as leather or sneaker cleaners, for the materials they are made for, and always read the product label.
Where WorthAI fits
Scanning before you clean can help you decide how careful to be. WorthAI identifies the likely item from a photo and shows an estimated worth with a range and buyer demand. If an item turns out to be collectible, check what collectors expect before cleaning. After cleaning, rescan with a clear photo so the identification and listing draft reflect the item's best honest condition.
Frequently asked questions
Should I clean an item before selling it?
Usually yes for everyday items, gently. But some items, such as coins, antique finishes and old paper, can lose appeal when cleaned. Check before you start.
What is the safest way to clean something I am not sure about?
Start with a dry soft cloth or brush, then a damp cloth with water, then mild soap. Test on a hidden area first, and stop if anything changes color or texture.
Can I put vintage glassware in the dishwasher?
It is safer not to. Dishwasher detergent can dull or fade painted, printed and gilded finishes. Hand wash with mild soap instead.
Should I mention cleaning in my listing?
Yes. Say how the item was cleaned if it matters to buyers, and describe any marks, stains or odors that remain. Honest descriptions prevent returns and disputes.