u/ranzee

I sell lower-value items, and I finally stopped relying on eBay's native Seller Hub and dumped my sales data into my own custom dashboard to see my actual net profit.

Once you factor in promoted listings, final value fees, and the fixed per-order fees against a low-cost item, my effective fee rate is sitting at over 15% (screenshot attached of my June breakdown). A 74% gross margin looks great until you realize how much the platform is actually eating.

Just a heads-up to anyone doing high-volume, low-margin flips - run your own numbers, don't just trust the payout screen. Has anyone else noticed their effective platform fees creeping up this year?

I got tired of messy Excel spreadsheets, so I spent the last few months trying to code a custom inventory web app for my son and me.

I thought it would be genius to integrate an AI vision engine to instantly identify the coins and pull live market data. But as you can see from the screenshot, the AI is currently convinced that a standard 12-sided cupro-nickel 50c is a round 1966 80% silver piece.

I guess this is proof that tech still can't replace actual numismatic knowledge. Back to the drawing board to figure out how to teach a robot the difference between a circle and a dodecagon!

I decided to build a browser app to help my son keep track of his coin collection. One of the coolest features we just added to it is the ability to generate "Hunt Reports."

It basically compares your personal inventory against the master research database and builds a custom checklist of the specific coins you are missing - including errors, special commemoratives, and low-mintage dates.

You can print them out or just look at them on your phone when you're visiting coin fairs, hitting the banks, or digging through flea markets. You can generate them unlimited times for a small annual fee with FREE trial, and you can customize them with special search filters so you are only hunting for what you actually want.

(I blurred the specific values and mintages in the screenshot just so it isn't a spoiler, but you get the idea!)

Let me know if you're interested in checking it out for free (via the free trial) and I can send you the link.

(Admins: Hope this OK? - if not happy to remove, or change by your guidance!)

...so I built a custom database to track our finds and values (swipe for a look at the UI). We were getting so tired of manually looking up eBay sold comps. I finally just coded a tracker for us to map it all out automatically, track different reverse designs, and keep our skunk rates. Curious if you guys just stick to Excel, or if there's a standard way you all track your stash?