If you use Gmail and have a keyboard with a numeric keypad, try turning on the Labs feature, and then turn on the “Custom keyboard shortcuts” gadget.
This will create a new tab under settings for your keyboard shortcuts. Following is a proposed set of shortcuts allowing for faster browsing and sorting, with what I consider a logical organization. Note that I’m not showing shortcuts for every command, only the ones I propose changing.
|Back to threadlist||4|
|Report as spam||*|
|Move to trash||–|