I worked in record, video and bookstores for a long time. I accumulated lots of those items, many of them were great at the time but I'm not interested anymore or I have upgraded format or whatever.
For a long time I used paperback swap and swap a CD but I hate their point system. Then I discovered bookmooch which I love everything about but I lamented that I had no place cool to swap CDs and movies. A couple of weeks ago I rediscovered swaptree, apparently I signed up last year but never used and forgot about it, which is just the place. On swaptree you can trade across platforms...CD for book, DVD for video game! I now have a place to get better stuff, not necessarily a reduction in stuff but a more efficient stash of stuff.
Signup and get some cooler stuff than you already have.