Easier way to clear inventory

My inventory fills up so fast. And there is no easy way to get rid of items out on the battlefield. There needs to be some form of drop item hotkey, item filter system, auto salvage/autosell, or something. Way to many items.

EDIT: Maybe add either a button in your inventory to send your horse back to town to sell your items or a horse inventory where we can do the same thing. The horse will take 60 seconds to return and when its gone you can use your mount.

Teleport into town, salvage, go back into portal.

Then the game would become Teleport to Town Online

Way to many items, especially while leveling. At least in torment I only pick up ancestral items but while leveling, you kind of pick up everything.