You must post the classified advert in the Classifieds forum.
You must use a thread prefix if one is applicable. If more than one is applicable you must select the one that you most wish to happen. I.e. select "For Sale" even if you are also willing to trade but would prefer to sell.
If you are selling your item via eBay or another site, and the audience is not restricted to the forum membership, then you should NOT post it on here as it will be deleted (read the first paragraph of this post again). Exception: Other people are allowed to discover your eBay advert and post it in the eBay/Craigslist finds thread, but YOU should NOT do this.
No bumping on anything you're offering (for sale or trade)! Exceptions: 1) If you included a price as per the advisory, you can bump the thread to drop the price. 2) If you hadn't added enough information (such as photos) and now want to.
No fishing expeditions. You are either selling something or you're not. Either it's in the classifieds or it's deleted.
Basic rules for classifieds:
:-)