A few weeks back I went through a big clean up and dropped a heap of domains. Some seemed half-decent, but I'm never going to develop them and the effort to sell some for maybe reg fee each is not worth it.
Some of the domains (mainly .com) had been on the books for a decade!
Feeling good after the domain clean out, I then went onto Facebook and unfriended about a dozen people who probably never should have been there in the first place!
Always good to get rid of clutter.