Wiki - Drop Down Menu

Single click yourself to bring up a drop down menu with lots of useful options.

Open paperdoll - simply opens your paperdoll
Vendor Search - Will bring up the vendor search menu (See vendors page for more info)
Release co-ownership - if you are co-owner of a house, will release ownership
Open titles menu - will open the menu to toggle on your earned titles. All skill titles, champion titles, guild titles etc will be accessed on this menu.
Toggle Quest Item - Toggles quest items into your quest log for Mondain's Legacy quests
View Quest Log - Shows quest log for the old quest system's quests (only will show in your options if you're on one of these quests)
Quest Conversation - Shows quest conversation for the old quest system's quests (again will only show in your options if you're on one of these quests)
Cancel quest - will cancel quest for old quest system if you are on one

Open backpack - self explanatory
Toggle item insurance - use to toggle on/off insurance on an item
Open item insurance menu - opens insurance menu, lets you select auto renew on/off, shows total cost of insurance and what items on you are insured.
Refuse trades - self explanatory
Loyalty Rating - will bring up a page that looks something like this