You mean when your seasonal characters become non-season and your items are mailed to you? In the beginning I was sorting through stuff, still keeping some items, but later I just destroyed almost everything, since I don't play non-season anyway, so I'll probably do the same here.

It sucks, that there's apparently no rebirth feature, like D3 had. I liked playing essentially the same characters over and over again from level 1, and not having to delete them and make a new one.