Profit, postage and stock
How to manage your resale stock
Give every box a fixed code, write down which box each item goes into, and keep three separate areas: to process, listed, and sold waiting to post. Record five things per item: where it is, what it cost and when, where it is listed, for how long, and what it made. That is enough to scale.
What does badly kept stock cost you?
With thirty items, memory is enough. With a hundred and fifty, you spend twenty minutes looking for something that sold yesterday. With three hundred, you refund buyers for items you own but cannot find. Messy stock never appears in your accounts, but you pay for it three times:
- Search time. Example: five minutes per sale, over two hundred sales, is more than sixteen hours a year.
- Cancelled sales. An item you cannot find means a refund, a bad review, and lower visibility on the platform.
- Forgotten stock. Items bought, never listed, found again eighteen months later and out of season. That is money that sat doing nothing.
Why store by location rather than by category?
Sorting by category does not scale: categories overflow, mix, and force you to reshuffle every time you buy. What works is giving each container a fixed code and noting, for each item, which container it is in.
In practice: boxes or crates labelled A1, A2, B1 and so on. An item comes in, goes into the first box with space, and its code is written down. Finding it becomes instant, and the order you put things away no longer matters. It is how warehouses work: nobody stores by product, everything is stored by location.
The gain is counter-intuitive: you find everything by giving up on storing "logically". A category system has to be reorganised constantly; a location system never does.
Why split stock by stage?
Keep three physically separate areas:
- To process: bought, not yet washed or photographed.
- Listed: online, waiting for a buyer.
- Sold, to post: out of stock, waiting for its parcel.
The "to process" area is the real health check. If it grows week after week, you are buying faster than you list, and every item in it is money that is not working. Plenty of resellers think they have a sales problem when they have a listing problem.
What should you do with an item that will not sell?
An item listed for more than three months with no interest will not sell at that price. Three options, in this order:
- Drop the price properly: 15 to 20%, not 5%, so it moves into a different price bracket.
- Bundle it with similar pieces, which creates a new listing in the platform's eyes.
- Take the loss and free the space. A piece that has sat in a box for a year costs more than it will ever bring in.
The last decision is the hardest one emotionally and the most profitable one financially. You do not get your money back by waiting; you get it back by reinvesting elsewhere.
What do you need to know about each item?
| Field | Why you need it |
|---|---|
| Where it is | Finding it in seconds when it sells |
| What it cost, and when | Real profit, and how long the money was tied up |
| Where it is listed | Ending the other listings when it sells |
| How long it has been listed | Spotting what sits |
| What it made | Knowing which categories and sources pay |
A spreadsheet is fine at the start. It shows its limits once you have to update it from your phone, at a flea market, with photos, which is exactly when the entry has to be made or it will be forgotten.
resellflip follows each item from purchase to sale, flags what is sitting, and works out how fast your stock turns over. You enter the item on the spot, photo included, which is the only moment it has a real chance of being done.
A tool for this: Profit and inventory tracking
The tool
Try resellflip on one item
From one photo: a price range, and the net profit you would keep before you buy. Listings are written for you on a paid plan. No card needed.