- Contact COMC and get $20 worth of free listing credit for being a first time seller. That's 80 free listings with the 1 month listing service.
- Choose what cards to send - numbered stuff, GU, Auto seem to do just fine. The fewer copies on the site, the better. I've basically stopped sending anything in that already has more than 5-6 copies on the site. Put them in penny sleeves (they will charge you to remove them from top loaders. Put them in a regular card box, make sure they are secure (use kleenex, blanks, folded magazine - just make sure the cards don't move around a bunch). I usually send in around 200 cards at a time and they fit in a smaller (300-400 count) box which I can then get to fit inside of a flat rate priority mail envelope for around $6.00. If you want to send more, fill up a Medium flat rate priority box with a few of the smaller boxes. Go to COMC and fill out the submission forms - print your slips and include them in the package.
- Mail the package.
- In a month, the card shows up in your inventory ready to sell. It has been scanned, front and back, and listed with all information. You set the price and wait for the buyers to show up. This part is really straightforward and easy to do. I usually price as the lowest - if mine is the only copy I check eBay for recent sales and price accordingly. A lot of people kind of go crazy on their stuff...and it just sits there. Don't expect to sell everything overnight - how many you sell depends on your inventory. Somedays I sell 20, somedays I sell 0, etc.
Feel free to ask more questions if you have them - COMC has great customer service as well if you need something from them. I've been on the site around 14-15 months and have done really well with around 5,000 cards sold. So I have some experience if you'd like to tap into it.