Selling at Auction
Personally, I'd rather work with items under 100k, so you can sell in your shop 24 hours a day. Auction selling is tricky, but not that difficult. The only things I would auction are items priced over 100k. I could use the trading post for that, but generally, when I put items up for trade, I just get more items that I have to sell, or some neopoints pure, but I have other items I have to auction off. I'd rather just get pure neopoints the whole way.
What to sell it at
When to sell it
Ways to make a little extra at Auction
How to be faster in putting items up for auction, using your keyboard