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If a bit lost in the city, press M for the map. You can double-click on a location to get the "sparkle trail" to lead you there. Double-click on your marker to turn the marker off.
Z turns the "sparkle trail" off/on
You can remotely access your characters by clicking the link on the Neverwinter websitesite or by typing in gateway.playneverwinter.com (that is not a link - I used purple just to highlight it) and do things like Professions, Auction House and so forth. Very handy indeed!
The Manycoins Bank has both a Guild Bank and a couple of bank teller windows which give acces to personal storage space. Sixteen slots is default but you can buy more.
The Foundry is a system whereby players can create their own quests, and maybe get some Astral Diamonds as a tip from happy players as a reward for their work. They scale to your level when you start them.
Odd Fact: Gold (and lesser coinage) has relatively few uses in Neverwinter, and is mainly used for consumables, though you can buy Mounts and Companions with it. Astral Diamonds are the currency used in the Auction House, not gold.
Astral Diamonds are a type of ingame currency, and you get them via certain quests (for example, completion of a Daily Foundry Mission, but make sure you pick an eligible mission. Some aren't!) and Dungeons, etc. Press L and click the Foundry icon on the window that pops up to see Astral Coin rewards for various mission types. You can get some Astral Diamonds by Invoking your deity every hour. You can use the Invoke function at the large statue in the city, or at a Camp Fire or a Personal Altar (an item which drops and also acts like a Camp Fire). The diamonds are in Rough form when you get them, but you can refine up to 24,000 a day by clicking a button. When you first do an Invokation you get about 1400 Diamonds and after that it seems to vary from a couple of hundred to, sometimes, none at all.
Identity Scrolls can be bought for a few Astral Diamonds at the Wondrous Bazaar Vendor.
Items bought via the Neverwinter in-game store is purchased using Zen, which is in turn bought via Paypal/Credit card. Once bought, you have to log into your Perfect World account and "Charge" (i.e. transfer it) to your Neverwinter game. (Zen is used in quite a few Perfect World games, so you need to channel it to the game of your choice.)
Rogue Stealth skill is NOT a starting skill. It is an ability gained at lvl 10.
You get a free Companion (aka npc hireling) at lvl 16, and there are 5 to pick from. The Cleric will fight and Heal, the others have abilities of their own. You can also buy additional Companions for gold, but I think I am correct in saying you can only use one at a time. (Please correct me if this is not the case)
You get to ride Mounts at lvl 20. You get 3 Tokens for temporary mounts (they last 5 hours of ingame time apiece) and you can buy permanent mounts for 5 gold.
Skirmishes are events which require a party of five and can't be soloed. You can ask to join a group in Chat, which seems to rile some people because of clutter, or press K and join a Queue instead. From what I've read the Queue seems to take its own good time though.
If you can't see your friend even though you are apparently standing in the same location, you are in a different Instance. There's a blue circular icon on the top right of the mini-map window which will let you swap instances.
If you place an item in the Auction House to sell it, in your own interests please SET A BUY OUT PRICE! The AH is overrun with loads of low-level stuff which is set up to expire in 3 to 5 days. No-one will bother waiting that length of time for low-level items, because within a few hours they will have out-levelled it and won't need it.
Nightmare Chests are by no means a rare drop (some players mention having around 50), so don't waste your time trying to sell them for gold or swap one for a Key. You'll just get laughed at in Chat. The Chests are worth a handfull of Astral Diamonds at best whereas the Keys seem to cost many thousands. PW sell the Keys for $1.25 each and players are buying them to sell for lots and lots of Astral Diamonds.
If you need Identity Scrolls because you've run out of them and have a lot of items to ID, click the Wondrous Bazaar button at the top of the screen and purchase some. They immediately appear in your inventory - no need to run to the city Vendor or Postal Courier.
The Mail System sometimes borks itself and sends two copies of the same mail, and if any item(s) are attached to one of them, deleting the "spare", empty mail message will delete BOTH emails. Take care in case you lose a lot of stuff.