Gmail shortcuts and tips

I "like" Gmail, but as most Cloud based applications, I'm never as productive as with dedicated applications. I found a few shortcuts that help speed me through my Gmail
Keyboard shortcuts - Gmail Help. Oh when will drag and drop work in Gmail? I have been off Outlook for years, and still wish for drag to contacts. Finally drag attachments has been added; and the list of labs is always growing  (see Settings / labs). Steve

Shortcut Key	Definition	Action
c	Compose	Allows you to compose a new message.  + callows you to compose a message in a new window.
/	Search	Puts your cursor in the search box.
k	Move to newer conversation	Opens or moves your cursor to a more recent conversation. You can hit  to expand a conversation.
j	Move to older conversation	Opens or moves your cursor to the next oldest conversation. You can hit  to expand a conversation.
n	Next message	Moves your cursor to the next message. You can hit to expand or collapse a message. (Only applicable in 'Conversation View.')
p	Previous message	Moves your cursor to the previous message. You can hit to expand or collapse a message. (Only applicable in 'Conversation View.')
o or	Open	Opens your conversation. Also expands or collapses a message if you are in 'Conversation View.'
u	Return to conversation list	Refreshes your page and returns you to the inbox, or list of conversations.
e	Archive	Archive your conversation from any view.

The 10 most useful Gmail shortcuts | 10 Things | TechRepublic.com