Make unbound no trade items destroyable.

Sevchenko - Dreamweaver

Like in any other game, when there's an unbound no-trade item, when you drag it to out the inventory (as trying to drop it) The game confirms if you really want to DESTROY that item.

This would probably save us a lot of time when disposing of Fairy box keys, Palace of Nirvana key, Divine Order of Void/Longevity, Blinking Poutice, Inspired Swine Egg, Advice Box, Attendance Sheet, Reflection Shard and other annoying items we can't get rid of without an NPC.