Hi,
Since we all grow in the game there are tones of old items that we don't use anymore, and some which are difficult to get. I'm talking for exemple about clothes, runes, thread, scrolls...
Some of the events as well give us rewards which is nice, but for exemple i'm rank 4 lvl 26. I've nothing to do anymore with medium clothes.
My suggestion would be to re-use old items (instead of selling the 1/10 coins).
For exemple :
100 common cloth/rune/thread = 10 medium cloth/rune/thread = 1 advenced cloth/rune/thread