Starting a Whatnot Reselling Business, or Adding onto your Current Revenue Streams
Last night someone who saw me post about my last 30 days sales on Whatnot, reached out and asked how they could begin selling on Whatnot. She sent me a video of some of her vintage inventory, and explained that it was just a tiny amount of what she had accumulated. Her stuff was great! As I sat, thinking about what I should say back to her, I realized I had similar questions in a group where I posted the image. (see below). Perhaps it made more sense to write a blog and help many people at once.

Plan Your First Show Before You Sign up As a Whatnot Reseller
How to set up your first show on Whatnot
Adding inventory to your shows.
Setting up shipping, for your Whatnot Shows
- Do you want to allow free pick up for local buyers? This could be at a store where you already have a booth (with owner's permission). It could be at your home. If you agree to it, then select, "on". You'll need to then provide a note to the buyers (which will go to them automatically each show) on where they can get the items they purchased.
- Domestic Shipments. If your show has tiny things, like stickers, under 3 oz, you can select first class mail letter. Just toggle that on. Shipments from 1-5lbs, do you want to use USPS Flat Rate Boxes, or ship priority. Personally, I choose priority because things that I sell don't always fit it the flat rate box. Finally, Domestic Shipments over 5 lbs (and this includes bundling multiple sales together, not just per item), I chose Ground Advantage. I rarely sell things that are heavy, but compact enough to fit into a priority or flat rate box. For me, this is the best way to save my customers on shipping costs, and make it easiest to pack later.
- Shipping Costs box; There are 3 options. I have never done free shipping to my customers. That would balloon my costs too much, IMO. Many people do "buyer pays up to a set shipping cost", which is typically set at the default number. Today that's $9.21, but I've heard there is a postal rate hike coming. I choose that the "buyer pays all shipping costs". I've tried having where I pay above $9.21, but if I'm honest, haven't seen a difference in my sales by offering to pay that, so I don't.
Finally you have Shipping Profiles. These are for when you have something specific that maybe you want to ship by itself, not bundled with anything else. When I sell craft supplies, sometimes I'll fill a flat rate box with stamps, papers, stickers, etc and they get all of that, for one money. I have set up a profile for "flat rate box", max weight, and can not bundle with any other items. If you had something really delicate, this might be a good option, so it doesn't get bundled with other items.
Shipping Supplies - Get these BEFORE your first show.
What kind of shipping supplies you'll need is completely dependent upon what you sell. If I were selling baseball cards, my needs would be very different than selling vintage home decor.
Here is what I keep on hand, and where I typically get my supplies.
USPS - I get and use anything FREE I can! Priority and Flat Rate Boxes are free from the USPS. You can order them and they'll deliver to you free! Key point here, don't use the Flat Rate boxes for anything that's not flat rate. If you are shipping ground, you cannot use the free USPS supplies. That said, probably about 35% of what I ship I'm able to use their supplies.
Packing Paper: The larger the better. We order from a company called BringMeBoxes.com It's the cheapest way I have found to get shipping supplies. Plus if I order more than $200 at a time, they'll deliver for free. If that's not available to you, I've personally found that U-Haul has the best paper, at the best price.
Bubble Wrap - I keep both big and small bubbles on hand. I also get this from BringMeBoxes.com, which comes in bulk, but it's the cheapest I've found and I go through a lot of it! Uhaul, once again is my cheapest souce if I have to purchase locally.
Box sizes. This is going to vary widely depending on what you sell. In addition to all priority box sizes, and the largest flat rate box available, here's what I keep on hand. This is what I've found useful for selling vintage and greenery.
- 12x12x12. This is Whatnot's standard box size for all orders.
- 16x12x8 This box size is actually my most commonly used box. It's the same total cubic inches as the 12x12x12, so I don't pay any overage for size. It allows me to ship things that are a little longer though.
- 16x13.5x13.5 This is the equivalent of a small moving box. I do generally have to pay an oversize fee when I use this box. When a customer buys A LOT, this is easier than trying to break down things into multiple boxes.
- 8x8x8 This is a smaller box that works well for things like creamers, salt & pepper shakers, etc.
While recently I've expanded my box size range, these boxes, along with flat envelopes have sustained me for nearly 2 years. That has been largely helped by this tool. It's the box resizer. It basically scores the box so you can make it shorter by just folding it down. This way, if I really only need a 12x12x6 box, I don't need a different box, I just score the box 6 inches from the top and lay down the flaps. I don't need to figure out how to fill 6 inches with fluff and padding, wasting materials.

Of course you'll also need some basic things like packing tape, and a printer. If you plan on making this a real side hustle, or primary job, invest in a thermal label printer, they aren't terribly expensive and will save a lot of time and energy. You'll also need either copy paper or thermal labels depending on which printer you have.
I would also recommend that you have sharpies and painters tape on hand, for your shows, so you can designate who won each item, on the actual item. It makes life easier when you get to the packing part.
Let us know how we can help you!
You can find us on Whatnot as SquirrelandBeeHome. Join the chat in our shows. Message us privately on Facebook. We love helping others become successful and we are really very transparent about our methods. Reach out. Let us help you.
I hope you got something out of this blog, even if its just learning about the cool box resizer! Stay tuned for more helpful hints.
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