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May 12, 2026
How to Start an Etsy Shop: A Beginner's Guide for Resellers
Etsy is one of the best platforms for selling vintage, handmade, and craft items. Here's exactly how to open your shop and start making sales.
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May 05, 2026
Mercari Selling FAQ: Everything New Sellers Need to Know
New to selling on Mercari? Here's everything you need to know about fees, shipping, payouts, and what actually sells — no fluff, just answers.
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April 28, 2026
How to Sell on Multiple Platforms Without Losing Your Mind
Selling on multiple platforms means more buyers, but also more work. Here's how to make it manageable without doubling your workload.
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April 21, 2026
How to Find a Seller on Any Reselling Platform
Looking for a specific seller? Here's exactly how to find anyone's profile on each reselling platform — even if the platform's search makes it hard.
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April 09, 2026
Poshmark Selling Fees Explained: What You Actually Pay
Poshmark takes 20% on most sales. But that's not the full picture. Here's exactly what you pay, what's included, and how to price around it.
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March 26, 2026
The Best Free Tools for Resellers in 2026
You don't need to spend money to run a reselling business well. These free tools cover everything from research to shipping.
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March 24, 2026
Best Poshmark Usernames: How to Pick One That Sells
Your Poshmark username is permanent — almost. Here's how to pick a name that builds a real brand before you run out of chances to change it.
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March 12, 2026
How to Change Your Username on Every Reselling Platform
Rebranding? Outgrew your old name? Here's exactly how to change your username on each platform — and what you'll lose if you're not careful.
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February 26, 2026
What to Do When Your Username Is Already Taken
Your perfect username is taken on two platforms. Here's how to find an alternative that's just as good — or better.
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February 25, 2026
eBay Username Search: Find, Look Up & Check Any eBay User
eBay removed its Find a Member tool, but there are still several ways to search for any eBay username. Here's how to find existing users and check if a name is available.
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February 17, 2026
How to Start Selling on Every Major Reselling Platform
A platform-by-platform guide to signing up, listing your first item, and understanding the fees on all seven major reselling platforms.
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February 15, 2026
eBay Selling Guide: What New Sellers Need to Know
eBay is the largest and most versatile reselling platform. Here's how to set up your account, optimize your listings, and build a seller reputation that drives sales.
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February 14, 2026
How to Check eBay Username Availability (3 Methods)
Don't register an eBay account until you've checked whether your preferred username is actually available. Here are three free ways to find out.
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February 11, 2026
Username Rules and Limits for Every Reselling Platform
Every platform has different username rules. Here's exactly what each one allows so you can pick a name that works everywhere.
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February 09, 2026
New Platforms: Whatnot, Bonanza, Ruby Lane & Chairish
Username Inspector now supports 4 new reselling platforms — Whatnot, Bonanza, Ruby Lane, and Chairish. Check your username across all 11 marketplaces at once.
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February 08, 2026
Choosing the Right Username for Your Reselling Brand
Your username shows up on every listing, every review, and every profile URL. Here's how to choose one that builds your brand across every reselling platform.
Ready to check username availability?
Start checking usernames across eBay, Poshmark, Depop, Etsy, Grailed, Vinted, Mercari, Whatnot, Bonanza, Ruby Lane, and Chairish.
Use Username Inspector →