Second release with command line additions below.
New command-line options:
/tc list - Lists ALL the grays in your bag with Links
(helpful with Auctioneer addon so you can see values)
/tc count - Lists the total number of gray items in your bags
/tc purge - One time adhoc purge of all grays in bags
/tc on - this is the default purge for trashcan which REMAINS ON and will delete all grays as soon as they hit your bag. It's timer based.
/tc off - disables it
/tc status - tells if the current status of trashcan